The first step to changing 1 86/21 into a decimal is to change it to an improper fraction. To do that, we need to multiply 1 by 21 and add its product to 86 in the numerator to get: 107/21. Now we will attempt to convert 107/21 to a decimal using the following method.
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 107 by the denominator 21:
107 (numerator) ÷ 21 (denominator) = 5.1
As a result, you get 5.1 as your answer when you convert 1 86/21 (or 107/21) to a decimal.
Practice some more problems on converting fractions to decimals:
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