Solution: 142 138/121 as a decimal is 143.14MethodsFirst step – Making the fraction improper:The first step to changing 142 138/121 into a decimal is to change it to an improper fraction. To do that, we need to multiply 142 by 121 and add its product to 138 in the numerator to get: 17320/121. Now we will attempt to convert 17320/121 to a decimal using the following method:Explanation using the division method:One method to convert 17320/121 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 17320 by the denominator 121:17320 (numerator) ÷ 121 (denominator) = 143.14And there you go! We got 143.14 as the answer when you convert 142 138/121 (or 17320/121) to a decimal.Practice more 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:What is 3 2/30 as a decimal?What is 1 64/36 as a decimal?What is 5 12/22 as a decimal?What is 19 35/6 as a decimal?