The first step to changing 12 55/7 into a decimal is to change it to an improper fraction. To do that, we need to multiply 12 by 7 and add its product to 55 in the numerator to get: 139/7. Now we will attempt to convert 139/7 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 139 by the denominator 7:
139 (numerator) ÷ 7 (denominator) = 19.86
As a result, you get 19.86 as your answer when you convert 12 55/7 (or 139/7) to a decimal.
Practice some more problems on converting fractions to decimals:
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