Module 7 Review

benchmark fractions

100

what is a benchmark fraction?

a common fraction that is used for comparison to other numbers.

200

what is the benchmark fraction for 2/8?

1/4

300

What is the benchmark fraction for 9/10?

1

400

what is the benchmark fraction for 8/12?

1/2 or 2/3 either answer works

adding/subtracting fractions (easy)

100

2/4 + 1/4

3/4

200

7/8 - 1/2

3/8 

300

4/6 + 1/3

6/6 or 1

400

8/16 - 2/8 

4/16 or 1/4

adding and subtracting

100

4/10 - 1/5 + 3/20

7/20

200

2/3 - 3/6 + 7/18

10/18 or 5/6

300

2/3 + 6/15 - 2/5

12/15 or 4/5

400

1 6/10 - 3/4 + 6/20

46/40 or 1 6/40 or 3/20

adding fractions (hard)

100

4/5 + 6/11

74/55 or 1 19/55

200

3/5 + 3/4

27/20 or 1 7/20

300

2 4/12 + 1 3/5 

3 56/60

400

4/9 + 5/6 

69/54 or 1 15/54

subtracting fractions (hard)

100

7/8 - 3/16

11/16

200

5/6 - 6/8

4/48 or 1/12

300

2 9/11 - 5/6

1 65/66

400

1 4/7 - 7/9

50/63