3 years ago

How would I show 2/5 as a division problem? Please explain using complete sentences.

1 answer:

3 0

If you mean to ask how you divide 2 by 5, then consider instead dividing 20 by 5, then divide that result by 10 (which is as simple as moving a decimal point to the left)

We have 20/5 = 4, then 4/10 = 0.4.

Why does this work? All we're doing is multiplying by 1 in the form of 10/10, then moving around factors within the product:

2/5 = 2/5 * 10/10 = (2*10)/5 * 1/10 = 20/5 * 1/10 = 4/10 = 0.4

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