Sum of Unit Fractions
Find the Sum
Find the Difference
World Problems
Random
100

Write the fraction as the sum of the unit fractions.

2/5 =?

1/5 + 1/5

100

4/12 + 3/12 = ?

7/12

100

5/10 - 3/10=?

2/10

100

Jordan has a piece of string that is 7/8 foot long.
He cuts off 3/8 foot.
How much string does he have left?

4/8 foot

100

What is another way to write 3/8?

A.1/8 + 1/8

B. 1/4 + 2/4

C. 1/2 + 1/2 + 2/2 + 2/2

D. 1/8 + 1/8 + 1/8

The answer is D

200

Write the fraction as the sum of the unit fractions.

3/10 = ?

Possible equations below.

2/10 + 1/10 

1/10 + 1/10 + 1/10

200

2/8 + 4/8 + 1/8 =?

7/8
200

18/20 - 9/20=?

9/20

200

Mia has 9/10 foot of ribbon.
She uses 4/10 foot for a project.
How much ribbon does she have left?

5/10 foot

200

What fraction is equivalent to 2/10?

A. 2/100

B. 20/10

C. 20/100

D. 1/2

The answer is C.

300

Write the fraction as the sum of the unit fractions in two different ways.

6/8 =? 


Possible equations shown below.

3/8 + 2/8 + 1/8 

2/8 + 4/8

3/8 + 3/8 

1/8 + 5/8 

300

12/18 + 4/18 = ?

16/18

300

8/12 - 5/12 =?

3/12

300

A board is 11/12 foot long.
The carpenter cuts off 5/12 foot.
How long is the board now?

6/12 foot

300

Which two fractions are being represented as 5/10?

A. 40/100 + 1/10

B. 4/10 + 10/100

C. 4/100 + 1/100

The answer is A & B.
400

Write the fraction as the sum of the unit fractions in two different ways.

7/10 = ?

Possible equations below.

1/10 + 6/10

2/10 + 5/10

3/10 + 4/10

400

3/10 + 2/10 + 1/10 =?

6/10

400

16/20 - 10/20 = ?

6/20

400

Lila is at soccer practice.
Today her team has to run a 9/10-mile warm-up.

Lila runs quickly for 4/10 mile, and then she jogs for 3/10 mile.

How far does Lila have left to run?

2/10 mile left to run.

400

What fraction is being represented as 9/100?

A. 80/100 + 1/10

B. 8/10 + 10/100

C. 8/100 + 1/100

The answer is C

500

Write the fraction as the sum of the unit fractions.

10/12 = ?

Possible equations below.

1/12 + 9/12

2/12 + 8/12

3/12 + 7/12

4/12 + 6/12

5/12 + 5/12

500

6/10 + 32/100 = ?

92/100

500

52/100 - 36/100 = ?

16/100

500

Sophia has 15/18 foot of fabric.
She uses 8/18 foot.
How much fabric does she have left?

7/18 foot

500

Complete the equation to find the sum of 35/100 + 1/10.

Fill in the blanks.

35/100 + 1/10 = 35/100 + _______ = _______

10/100, 1/100, 11/100, 36/100, 45/100, 46/100

10/100, 45/100