simplification of fractions

20/45

• 4/8

• 9/4

• 4/9

• none of above

25/75

• 2/7

• 1/3

• 5/15

• none of the above

40/100

• 2/5

• 4/10

• 1/4

• none of above

4/36

• 2/18

• 1/50

• 1/9

• none of above

12/60

• 1/6

• 1/5

• 1/4

• none of above

7/56

• 1/6

• 2/8

• 1/8

• none of above

10/1000

• 1/100

• 1/10

• 1/1000

• none of the above

11/88

• 1/8

• 2/8

• 10/80

• none of above

30/60

• 3/6

• 1/2

• 6/3

• none of above

4/44

• 1/10

• 2/22

• 1/11

• none of above