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Common Core: 5th Grade Math : Number & Operations with Fractions

研究概念,例子问题&解释for Common Core: 5th Grade Math

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All Common Core: 5th Grade Math Resources

7 Diagnostic Tests 225 Practice Tests Question of the Day Flashcards Learn by Concept

Example Questions

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Example Question #3 :Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

Laura ate $\frac{2}{7}$ of the ice cream and Drew ate $\frac{1}{3}$ . How much of the ice cream did they eat?

Possible Answers:

$\frac{3}{4}$

$\frac{11}{15}$

$\frac{9}{21}$

$\frac{13}{21}$

$\frac{3}{10}$

Correct answer:

$\frac{13}{21}$

Explanation:

$\frac{2}{7}+\frac{1}{3}$

In order to solve this problem, we first need to make common denominators.

$\frac{2}{7}\times\frac{3}{3}=\frac{6}{21}$

$\frac{1}{3}\times\frac{7}{7}=\frac{7}{21}$

Now that we have common denominators, we can add the fractions. Remember, when we add fractions, the denominator stays the same, we only add the numerator.

$\frac{6}{21}+\frac{7}{21}=\frac{13}{21}$

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Example Question #81 :How To Add Fractions

Kara ate $\frac{7}{18}$ of the bag of chips and Andrew ate $\frac{1}{9}$ . How much of the bag of chips did they eat?

Possible Answers:

$\frac{6}{10}$

$\frac{3}9{}$

$\frac{9}{18}$

$\frac{8}{27}$

$\frac{15}{21}$

Correct answer:

$\frac{9}{18}$

Explanation:

$\frac{7}{18}+\frac{1}{9}$

In order to solve this problem, we first need to make common denominators.

$\frac{1}{9}\times \frac{2}{2}=\frac{2}{18}$

Now that we have common denominators, we can add the fractions. Remember, when we add fractions, the denominator stays the same, we only add the numerator.

$\frac{7}{18}+\frac{2}{18}=\frac{9}{18}$

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Example Question #11 :Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

David ate $\frac{3}{12}$ of the pizza and Alison ate $\frac{1}{3}$ of the pizza. How much more of the pizza did Alison eat?

Possible Answers:

$\frac{1}{12}$

$\frac{1}3{}$

$\frac{3}4{}$

$\frac{9}{11}$

$\frac{5}7{}$

Correct answer:

$\frac{1}{12}$

Explanation:

$\frac{1}{3}-\frac{3}{12}$

In order to solve this problem, we first need to make common denominators.

$\frac{1}{3}\times\frac{4}{4}=\frac{4}{12}$

Now that we have common denominators, we can subtract the fractions. Remember, when we subtract fractions, the denominator stays the same, we only subtract the numerator.

$\frac{4}{12}-\frac{3}{12}=\frac{1}{12}$

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Example Question #1652 :Ssat Middle Level Quantitative (Math)

Shannon has painted $\frac{5}{8}$ of the house and Dan has painted $\frac{1}4{}$ of the house. How much more of the house has Shannon painted?

Possible Answers:

$\frac{9}{11}$

$\frac{3}4{}$

$\frac{1}4{}$

$\frac{3}{8}$

$\frac{5}7{}$

Correct answer:

$\frac{3}{8}$

Explanation:

$\frac{5}{8}-\frac{1}{4}$

In order to solve this problem, we first need to make common denominators.

$\frac{1}{4}\times\frac{2}{2}=\frac{2}{8}$

Now that we have common denominators, we can subtract the fractions. Remember, when we subtract fractions, the denominator stays the same, we only subtract the numerator.

$\frac{5}{8}-\frac{2}{8}=\frac{3}{8}$

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Example Question #12 :Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

Tim mowed $\frac{1}{7}$ of the yard and Tom mowed $\frac{1}{3}$ . How much more of the yard did Tom mow?

Possible Answers:

$\frac{4}{21}$

$\frac{1}9{}$

$\frac{5}7{}$

$\frac{2}3{}$

$\frac{13}{21}$

Correct answer:

$\frac{4}{21}$

Explanation:

$\frac{1}{3}-\frac{1}{7}$

In order to solve this problem, we first need to make common denominators.

$\frac{1}{7}\times\frac{3}{3}=\frac{3}{21}$

$\frac{1}{3}\times \frac{7}{7}=\frac{7}{21}$

Now that we have common denominators, we can subtract the fractions. Remember, when we subtract fractions, the denominator stays the same, we only subtract the numerator.

$\frac{7}{21}-\frac{3}{21}=\frac{4}{21}$

Report an Error

Example Question #13 :Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

Jessica ate $\frac{1}{3}$ of the cake and Megan ate $\frac{1}{2}$ . How much more of the cake did Megan eat?

Possible Answers:

$\frac{1}{6}$

$\frac{1}{3}$

$\frac{4}{9}$

$\frac{2}{3}$

$\frac{1}{2}$

Correct answer:

$\frac{1}{6}$

Explanation:

$\frac{1}2{}-\frac{1}{3}$

In order to solve this problem, we first need to make common denominators.

$\frac{1}3{\times\frac{2}{2}=\frac{2}{6}}$

$\frac{1}{2}\times\frac{3}{3}=\frac{3}{6}$

Now that we have common denominators, we can subtract the fractions. Remember, when we subtract fractions, the denominator stays the same, we only subtract the numerator.

$\frac{3}{6}-\frac{2}{6}=\frac{1}{6}$

Report an Error

Example Question #14 :Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

Kara ate $\frac{7}{18}$ of the bag of chips and Andrew ate $\frac{1}{9}$ . How much more of the bag of chips did Kara eat?

Possible Answers:

$\frac{5}{18}$

$\frac{4}{9}$

$\frac{2}{3}$

$\frac{9}{13}$

$\frac{1}{6}$

Correct answer:

$\frac{5}{18}$

Explanation:

$\frac{7}{18}-\frac{1}{9}$

In order to solve this problem, we first need to make common denominators.

$\frac{1}{9}\times \frac{2}{2}=\frac{2}{18}$

Now that we have common denominators, we can subtract the fractions. Remember, when we subtract fractions, the denominator stays the same, we only subtract the numerator.

$\frac{7}{18}-\frac{2}{18}=\frac{5}{18}$

Report an Error

Example Question #15 :Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

Laura ate $\frac{2}{7}$ of the ice cream and Drew ate $\frac{1}{3}$ . How much more of the ice cream did Drew eat?

Possible Answers:

$\frac{1}{7}$

$\frac{9}{11}$

$\frac{5}7{}$

$\frac{1}{21}$

$\frac{2}3{}$

Correct answer:

$\frac{1}{21}$

Explanation:

$\frac{1}{3}-\frac{2}{7}$

In order to solve this problem, we first need to make common denominators.

$\frac{2}{7}\times\frac{3}{3}=\frac{6}{21}$

$\frac{1}{3}\times\frac{7}{7}=\frac{7}{21}$

Now that we have common denominators, we can subtract the fractions. Remember, when we subtract fractions, the denominator stays the same, we only subtract the numerator.

$\frac{7}{21}-\frac{6}{21}=\frac{1}{21}$

Report an Error

Example Question #16 :Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

Joe paited $\frac{3}{10}$ of the fence an Sara painted $\frac{1}{2}$ . How much more of the fence did Sara paint?

Possible Answers:

$\frac{3}{4}$

$\frac{1}2{}$

$\frac{7}{11}$

$\frac{3}{10}$

$\frac{1}{5}$

Correct answer:

$\frac{1}{5}$

Explanation:

$\frac{1}{2}-\frac{3}{10}$

In order to solve this problem, we first need to make common denominators.

$\frac{1}{2}\times\frac{5}{5}=\frac{5}{10}$

Now that we have common denominators, we can subtract the fractions. Remember, when we subtract fractions, the denominator stays the same, we only subtract the numerator.

$\frac{5}{10}-\frac{3}{10 }=\frac{2}{10}$

$\frac{2}{10}$ can be reduced be dividing both sides by.

$\frac{2}{10} \div\frac{2}{2}=\frac{1}{5}$

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Example Question #1651 :Ssat Middle Level Quantitative (Math)

Ben washed $\frac{3}{8}$ of the windows and Jen washed $\frac{1}{4}$ of them. How much more of the windows did Ben wash?

Possible Answers:

$\frac{7}9{}$

$\frac{2}3{}$

$\frac{1}8{}$

$\frac{1}6{}$

$\frac{1}2{}$

Correct answer:

$\frac{1}8{}$

Explanation:

$\frac{3}{8}-\frac{1}{4}$

In order to solve this problem, we first need to make common denominators.

$\frac{1}{4}\times\frac{2}{2}=\frac{2}{8}$

Now that we have common denominators, we can subtract the fractions. Remember, when we subtract fractions, the denominator stays the same, we only subtract the numerator.

$\frac{3}{8}-\frac{2}8{=\frac{1}{8}}$

Report an Error

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Common Core: 5th Grade Math : Number & Operations with Fractions

研究概念,例子问题&解释for Common Core: 5th Grade Math

All Common Core: 5th Grade Math Resources

Example Questions

Example Question #3 :Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

Example Question #81 :How To Add Fractions

Example Question #11 :Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

Example Question #1652 :Ssat Middle Level Quantitative (Math)

Example Question #12 :Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

Example Question #13 :Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

Example Question #14 :Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

Example Question #15 :Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

Example Question #16 :Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

Example Question #1651 :Ssat Middle Level Quantitative (Math)

All Common Core: 5th Grade Math Resources

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