# Common Core: 5th Grade Math : Number & OperationsâFractions

## Example Questions

### Example Question #76 : Numbers And Operations

Solve:

Explanation:

In order to solve this problem, we first have to find common denominators.

Now that we have common denominators, we can add the fractions. Remember, when we add and subtract fractions, we only add or subtract the numerator.

because  can go into  one time with  left over.

### Example Question #21 : Add And Subtract Fractions With Unlike Denominators: Ccss.Math.Content.5.Nf.A.1

Solve:

Explanation:

In order to solve this problem, we first have to find common denominators.

Now that we have common denominators, we can add the fractions. Remember, when we add and subtract fractions, we only add or subtract the numerator.

because  can go into  one time with  left over.

### Example Question #78 : Numbers And Operations

Solve:

Explanation:

In order to solve this problem, we first have to find common denominators.

Now that we have common denominators, we can add the fractions. Remember, when we add and subtract fractions, we only add or subtract the numerator.

### Example Question #22 : Add And Subtract Fractions With Unlike Denominators: Ccss.Math.Content.5.Nf.A.1

Solve:

Explanation:

In order to solve this problem, we first have to find common denominators.

Now that we have common denominators, we can subtract the fractions. Remember, when we add and subtract fractions, we only add or subtract the numerator.

### Example Question #22 : Add And Subtract Fractions With Unlike Denominators: Ccss.Math.Content.5.Nf.A.1

Solve:

Explanation:

In order to solve this problem, we first have to find common denominators.

Now that we have common denominators, we can subtract the fractions. Remember, when we add and subtract fractions, we only add or subtract the numerator.

### Example Question #1 : Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

Mary has a bag of marbles. She gives half of the marbles to her brother and a third of the marbles to her sister. What fraction of the original marbles does Mary have left?

Explanation:

### Example Question #1 : Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

Joe paited  of the fence an Sara painted . How much of the fence is painted?

Explanation:

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

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.

can be reduced be dividing both sides by .

### Example Question #1 : Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

Zach cleaned  of the house and Alex cleaned  of the house. How much of the house did they clean?

Explanation:

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

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.

### Example Question #1 : Solve Word Problems Involving Addition And Subtraction Of Fractions: Ccss.Math.Content.5.Nf.A.2

Ben washed  of the windows and Jen washed . How much of the windows have they washed?

Explanation:

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

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.

### Example Question #81 : Numbers And Operations

Jake ate  of the popcorn and Dave ate  of the popcorn. How much of the popcorn have they eaten?

Explanation:

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

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.

can be reduced by dividing  by both sides.