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Math Tutor Solution: 21/30 as a decimal is 0.7
Methods
Math tutor 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 21 by the denominator 30 (which you can enter in any calculator):
21 (numerator) ÷ 30 (denominator) = 0.7
And finally, you get 0.7 as your answer when you convert 21/30 to a decimal.
Math Tutor Suggests: Practice more conversion problems
Our math tutors say that 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:
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