Solution: 40/21 as a decimal is 1.9MethodsExplanation 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 40 by the denominator 21 (which you can enter in any calculator):40 (numerator) ÷ 21 (denominator) = 1.9And finally, you get 1.9 as your answer when you convert 40/21 to a decimal.Practice more conversion problemsAll 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 7/56 as a decimal?What is 146/144 as a decimal?What is 116/55 as a decimal?What is 57/131 as a decimal?