What is 3 21/42 as a decimal?

Accepted Solution

Solution: 3 21/42 as a decimal is 3.5 Methods First step – Making the fraction improper: The first step to changing 3 21/42 into a decimal is to change it to an improper fraction. To do that, we need to multiply 3 by 42 and add its product to 21 in the numerator to get: 147/42. Now we will attempt to convert 147/42 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 147 by the denominator 42 (which you can enter in any calculator): 147 (numerator) ÷ 42 (denominator) = 3.5 And finally, you get 3.5 as your answer when you convert 3 21/42 (or 147/42) 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: What is 1 57/43 as a decimal? What is 7 26/16 as a decimal? What is 2 28/39 as a decimal? What is 1 104/13 as a decimal?