A fraction is written in terms of two parts: the number on top is called the numerator and the number on the bottom is called the denominator. We can use the division method to solve this question. To get a decimal, simply divide the numerator 30 by the denominator 20:
30 (numerator) ÷ 20 (denominator) = 1.5
As a result, you get 1.5 as your answer when you convert 1 10/20 (or 30/20) to a decimal.