Which ratio is not in the simplest form? A. (4)/(9) B. (11)/(13) C. (6)/(5) D. (14)/(21)

Question

Which ratio is not in the simplest form?

A.
`(4)/(9)`
B.
`(11)/(13)`
C.
`(6)/(5)`
D.
`(14)/(21)`

Answer 1

C because it is a mixed fraction and can be simplified to 1 and 1/5

Answer 2

D 14/21 can be reduced by 7 to equal 2/3