Practice!

Sample Problem

Fill the missing numbers.

(a)  55:5 = :1

(b)  18:27 = 6:

Solution

(a)  55:5 = (55 ÷ 5) : (5 ÷ 5) = 11:1

(b)  18:27 = (18 ÷ 3) : (27 ÷ 3) = 6:9