Question

A student got 34 pencils for school. If she sharpen 16 of the pencils before school what is her ratio of unsharpened pencils to sharpened pencils

Answer 1

34-16 = 18

 so 18 are unsharpened

ratio is 18/16 reduced to 9/8

Answer 2

34 total pencils......16 were sharpened...that means (34 - 16 ) = 18 pencils that were not sharpened.

so the ratio of unsharpened pencils to sharpened pencils is :
18:16 which reduces to 9:8 or 9/8 or 9 to 8 <==