What is 3 102/12 as a decimal?

Decimals and fractions are two ways you can write the same number. A decimal is written when in two parts, its whole numbers part and its decimals part – with a decimal point in between. In this article, you’ll learn how to convert 3 102/12 to a decimal using the division method.

Solution: 3 102/12 as a decimal is 11.5

Methods

First step – Making the fraction improper:

The first step to changing 3 102/12 into a decimal is to change it to an improper fraction. To do that, we need to multiply 3 by 12 and add its product to 102 in the numerator to get: 138/12. Now we will attempt to convert 138/12 to a decimal using the following method:

Explanation using the division method:

A fraction is usually split into two parts: the first part is the number on top, called the numerator; and the second part is the number on the bottom, called the denominator. These are both separated by a line called the “divisor line”. We can use the division method help to solve this question: to get a decimal, simply divide the numerator 138 by the denominator 12 (which you can enter in any calculator):

138 (numerator) ÷ 12 (denominator) = 11.5

And finally, you get 11.5 as your answer when you convert 3 102/12 (or 138/12) to a decimal.

Practice more conversion problems

All it takes to be better at something is some practice! Take a look at some more similar problems on converting fractions to decimals and give them a go:

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