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 10 by the denominator 20:
10 (numerator) ÷ 20 (denominator) = 0.5
As a result, you get 0.5 as your answer when you convert 10/20 to a decimal.