How do you change 0.72 into a fraction?

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Answer 1 · 2018-03-29T21:37:56

$18/25$

0.72 is the same as $72/100$ (try putting both into a calculator!) as you can view 1.00 as $1/1$ .

Reducing the fraction gives you $72/100$ = $18/25$ .

Answer 2 · 2018-03-29T21:44:36

Below...

You could do this two ways:

$0.72 -> 72/100 -> 18/25$

when dividing the numerator and denominator by $4$ .

Or alternatively...

let $x =0.72$

$10x=7.2$

$100x=72$

$1000x=720$

$1000x-100x=720-72 -> 900x=648 -> x=648/900 -> 18/25$

when dividing the numerator and denominator by $36$