Math

Equivalent Fractions

100

What are 3 other equivalent fractions for 7/9?

Answers vary.

200

Fill in the missing number:

2/3 = 16/ ?

24

300

Which are NOT equivalent to 4/5? 

24/25,  24/30,  12/15,  12/16,  8/10

12/16  and  24/25

400

Find the missing value to make the fraction equivalent:

9/15 = 3/ ?

5

500

Reduce to lowest form:

12/54 

6/27 = 2/9

Add/Sub. Fractions

100

Add and reduce:

1 whole 1/8 + 2 wholes 1/8

= 3 wholes 2/8 = 3 wholes 1/4

200

Add and change to a mixed number:

6/8 + 7/8

13/8 = 1 whole 5/8

300

Subtract and reduce:

13/25 - 3/25

= 10/25 = 2/5

400

Add and reduce:

3 wholes 4/9 + 2/9

= 3 wholes 6/9 = 3 wholes 2/3

500

Add, reduce, rewrite improper fractions to mixed fraction:

28/32 + 12/32

= 40/32 = 10/8 = 5/4 

= 1 whole 1/4

Borrowing

100

Borrow from the whole:

8 wholes 4/21 

7 wholes 25/21

200

Subtract by borrowing, reduce and keep as mixed fraction:

14 wholes 3/8 - 13 wholes 6/8 

= 13 wholes 11/8 - 13 wholes 6/8

= 5/8

300

Borrow from the whole, then rewrite mixed fraction to improper fraction:

9 wholes 5/6

8 wholes 11/6

= 59/6

400

Subtract by borrowing. Reduce and keep as mixed fraction:

9 wholes 4/6 - 3 wholes 5/6

= 8 wholes 10/6 - 3 wholes 5/6 

= 5 wholes 5/6

500

Subtract by borrowing. Reduce and keep as mixed fraction:

12 wholes 5/24 - 5 wholes 12/24

= 11 wholes 29/24 - 5 wholes 12/24

= 6 wholes 17/24

LCM

100

What is the smallest common multiple of:

12 and 18

36

200

Find the LCM for:  7, 12

84

300

Find the LCM for: 14, 18

126

400

Find the LCM for: 15, 20, 30

60

500

Find the LCM for:  6, 12, 20

60