CCSS.MATH.CONTENT.5.NF.A.1 Math Review

Finding LCD

100

The LCD of 1/3 and 2/8

The LCD is 24. 

200

The LCD of 2/7 and 3/5?

The LCD is 35

300

The LCD of 5/8 and 2/6 

The LCD is 24.

400

The LCD of 3 2/4 and 2 3/9? 

The LCD is 36.

Write Equivalent Fractions

100

1/3 + 1/8 

8/24 + 3/24

200

2/3 - 3/6

4/6 - 3/6

300

8/12-3/8?

16/24 - 9/24

400

4 1/7 + 2 2/3

4 3/21 + 2 14/21

Adding/Subtracting Fractions with Unlike Denominators

100

What is 1/3 + 2/5?

11/15

200

What is 2/3 - 1/2?

1/6

300

What is 5/6 - 1/8?

17/24

400

What is 1/2 + 1/6?

4/6 or 2/3

Adding/Subtracting Mixed Numbers with Unlike Denominators

100

1 2/7 + 2 1/2 

3 11/14

200

4 3/5 - 3 2/4

1 2/20 or 1 1/10

300

1 2/5 - 6/10?

8/10 or 4/5

400

1 1/4 + 2 2/3

3 11/12