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

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Example Question #1 : Understand Addition And Subtraction Of Fractions: Ccss.Math.Content.4.Nf.B.3a

Select the fraction model that shows the sum of 

Possible Answers:

3 6

2 4

2 6


2 3

3 4

Correct answer:


2 3

Explanation:

The fraction model is broken 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 #2 : Understand Addition And Subtraction Of Fractions: Ccss.Math.Content.4.Nf.B.3a

Select the fraction model that shows the sum of 

 

Possible Answers:

3 4


2 3

2 6

3 6


2 4

Correct answer:


2 4

Explanation:

The fraction model is broken 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 #3 : Understand Addition And Subtraction Of Fractions: Ccss.Math.Content.4.Nf.B.3a

Select the fraction model that shows the sum of 

Possible Answers:

2 3

2 4

2 6

3 6

3 4

Correct answer:

3 4

Explanation:

The fraction model is broken 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 #4 : Understand Addition And Subtraction Of Fractions: Ccss.Math.Content.4.Nf.B.3a

Select the fraction model that shows the sum of 

Possible Answers:

2 4

2 8

2 3


2 6

3 4

Correct answer:


2 6

Explanation:

The fraction model is broken 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 #5 : Understand Addition And Subtraction Of Fractions: Ccss.Math.Content.4.Nf.B.3a

Select the fraction model that shows the sum of 

 

Possible Answers:

3 8


3 6

2 6

5 6

3 4

Correct answer:


3 6

Explanation:

The fraction model is broken 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 #6 : Understand Addition And Subtraction Of Fractions: Ccss.Math.Content.4.Nf.B.3a

Select the fraction model that shows the sum of 

 

Possible Answers:

2 6

3 6

4 8

5 8

4 6

Correct answer:

4 6

Explanation:

The fraction model is broken 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. 

Example Question #7 : Understand Addition And Subtraction Of Fractions: Ccss.Math.Content.4.Nf.B.3a

Select the fraction model that shows the sum of 

 

Possible Answers:

3 4

2 4

4 8

4 6

5 6

Correct answer:

4 6

Explanation:

The fraction model is broken 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. 

Example Question #8 : Understand Addition And Subtraction Of Fractions: Ccss.Math.Content.4.Nf.B.3a

Select the fraction model that shows the sum of 

Possible Answers:


5 6

4 6

4 8

5 8

2 3

Correct answer:


5 6

Explanation:

The fraction model is broken up into six pieces and five 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 #9 : Understand Addition And Subtraction Of Fractions: Ccss.Math.Content.4.Nf.B.3a

Select the fraction model that shows the sum of 

 

Possible Answers:

2 4

4 8

5 8

2 8


3 8

Correct answer:


3 8

Explanation:

The fraction model is broken up into eight 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 #10 : Understand Addition And Subtraction Of Fractions: Ccss.Math.Content.4.Nf.B.3a

Select the fraction model that shows the sum of 

 

Possible Answers:

5 8

3 4

3 6

4 8

4 6

Correct answer:

4 8

Explanation:

The fraction model is broken up into eight 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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