Question

Of the 88keys on a piano, 52 keys are white.A. what fraction of the piano's keys are white?B. what is the ratio of black keys to white keys?

Answer 1

A. The fraction of the piano's keys that are white = 52/88= 13/22

B. The number of black keys = 88 - 52 = 36

Therefore, the ratio of black keys to white keys is

36 : 52

= 9 : 13 ( simplest form)