Solution: 81/21 as a decimal is 3.86MethodsExplanation using the division method:One method to convert 81/21 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 81 by the denominator 21:81 (numerator) ÷ 21 (denominator) = 3.86And there you go! We got 3.86 as the answer when you convert 81/21 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 2/29 as a decimal?What is 148/28 as a decimal?What is 102/120 as a decimal?What is 79/119 as a decimal?