Question

21 1/2 - 6 1/2 =
A.15
B.15 1/2
C.16
D.15 2/4

Answer 1

A.15 The halves cancel out and subtract 6 from 21

Answer 2

Answer: 15

One easy way to do this is to convert these fractions into decimals

21 1/2 would be 21.5

6 1/2 would be 6.5

Now we can subtract these two values

21.5-6.5 = 15