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Please help 16 over 20 as decimal and why

User Raaz
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2 Answers

3 votes

Long division is the universal way, but it can also be approached differently.

We know that
20\cdot5=100, therefore
(16)/(20)=(16\cdot5)/(20\cdot5)=(80)/(100)=(8)/(10)=0.8.

Or simplify
(16)/(20) first:
(16)/(20)=(4)/(5). Then using the same logic as above -
5\cdot2=10, therefore we
(4)/(5)=(4\cdot2)/(5\cdot2)=(8)/(10)=0.8.

User Possen
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3 votes

Answer: .8

Explanation:


(16)/(20) >reduce the fraction first by dividing the top and the bottome by 4

so it is easier to divide

=
(4)/(5) >now divide 4 by 5

> 4 cannot go into 5 so you would place a decimal point after the 4 and add a 0

>4.0 divided by 5 is .8

=.8

you get a decimal which is less than 1 because you only have 4/5 which is less than 1 whole so you only get a portion as a decimal.

Please help 16 over 20 as decimal and why-example-1
User Cjoerg
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