Math Tutor Explains: What is 138 120/128 as a decimal?

Our math tutors share that there are different ways to represent the same number: fractions, decimals, and even percentages. In this particular guide, let’s explore how we can use the division method to convert 138 120/128 to a decimal.

Math Tutor Solution: 138 120/128 as a decimal is 138.94

Methods

First step from a math tutor – Making the fraction improper:

The first step to changing 138 120/128 into a decimal is to change it to an improper fraction. To do that, we need to multiply 138 by 128 and add its product to 120 in the numerator to get: 17784/128. Now we will attempt to convert 17784/128 to a decimal using the following method:

Math tutor's explanation for using the division method:

One method to convert 17784/128 to a decimal is by using the division method. Before we move ahead to the method, here is a quick recap on fractions: A fraction is a number representation that is broken down into two parts - the number on top is called the numerator, and the number on the bottom is called the denominator. To get a decimal using the division method, simply divide the numerator 17784 by the denominator 128:

17784 (numerator) ÷ 128 (denominator) = 138.94

And there you go! We got 138.94 as the answer when you convert 138 120/128 (or 17784/128) to a decimal.

Math Tutor Suggests: Practice more problems!

All it takes to be better at something is some practice! Our math tutors suggest that you take a look at some more similar problems on converting fractions to decimals and give them a go:

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