Common Core: 4th Grade Math : Understand Addition and Subtraction of Fractions: CCSS.Math.Content.4.NF.B.3a

Study concepts, example questions & explanations for Common Core: 4th Grade Math

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Example Questions

Example Question #627 :Number & Operations: €”Fractions

Select the fraction model that shows the sum of

Possible Answers:

5 12

9 12

6 8

7 12

8 12

Correct answer:

7 12

Explanation:

分数模型坏了n up into twelve pieces and seven of the pieces are shaded in. The numerator of the fraction tells us how many pieces should be shaded in, and the denominator tells us how many pieces the whole should be split up into.

Example Question #628 :Number & Operations: €”Fractions

Select the fraction model that shows the sum of

Possible Answers:

7 8

9 12

6 8


8 12

7 12

Correct answer:


8 12

Explanation:

分数模型坏了n up into twelve pieces and eight of the pieces are shaded in. The numerator of the fraction tells us how many pieces should be shaded in, and the denominator tells us how many pieces the whole should be split up into.

Example Question #629 :Number & Operations: €”Fractions

Select the fraction model that shows the sum of

Possible Answers:

5 12

9 12

6 12

8 12

7 12

Correct answer:

9 12

Explanation:

分数模型坏了n up into twelve pieces and nine of the pieces are shaded in. The numerator of the fraction tells us how many pieces should be shaded in, and the denominator tells us how many pieces the whole should be split up into.

Example Question #630 :Number & Operations: €”Fractions

Select the fraction model that shows the sum of:

Possible Answers:

7 8

8 12

4th grade  14 second answer choice

6 12

6 8

Correct answer:

6 8

Explanation:

分数模型坏了n up into eight pieces and six of the pieces are shaded in. The numerator of the fraction tells us how many pieces should be shaded in, and the denominator tells us how many pieces the whole should be split up into.

Example Question #443 :Fractions

Select the fraction model that shows the difference of

Possible Answers:

3 4

2 6

2 8

2 3

2 4

Correct answer:

2 3

Explanation:

分数模型坏了n up into three pieces and two of the pieces are shaded in. The numerator of the fraction tells us how many pieces should be shaded in, and the denominator tells us how many pieces the whole should be split up into.

Example Question #444 :Fractions

Select the fraction model that shows the difference of

Possible Answers:

2 4

2 3

2 6

3 6

2 8

Correct answer:

2 4

Explanation:

分数模型坏了n up into four pieces and two of the pieces are shaded in. The numerator of the fraction tells us how many pieces should be shaded in, and the denominator tells us how many pieces the whole should be split up into.

Example Question #445 :Fractions

Select the fraction model that shows the difference of

Possible Answers:

4 8

2 6

3 4

4 6

3 6

Correct answer:

3 4

Explanation:

分数模型坏了n up into four pieces and three of the pieces are shaded in. The numerator of the fraction tells us how many pieces should be shaded in, and the denominator tells us how many pieces the whole should be split up into.

Example Question #446 :Fractions

Select the fraction model that shows the difference of

Possible Answers:

2 6

2 4

3 6

2 8

4 6

Correct answer:

2 6

Explanation:

分数模型坏了n up into six pieces and two of the pieces are shaded in. The numerator of the fraction tells us how many pieces should be shaded in, and the denominator tells us how many pieces the whole should be split up into.

Example Question #447 :Fractions

Select the fraction model that shows the difference of

Possible Answers:

3 6

2 6

2 4

2 3

3 4

Correct answer:

3 6

Explanation:

分数模型坏了n up into six pieces and three of the pieces are shaded in. The numerator of the fraction tells us how many pieces should be shaded in, and the denominator tells us how many pieces the whole should be split up into.

Example Question #448 :Fractions

Select the fraction model that shows the difference of

Possible Answers:

5 8

4 8

4 6

3 8

5 6

Correct answer:

4 6

Explanation:

分数模型坏了n up into six pieces and four of the pieces are shaded in. The numerator of the fraction tells us how many pieces should be shaded in, and the denominator tells us how many pieces the whole should be split up into.

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