Convert 0.9 to a percentage?

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2 Answers
Lu C. · EZ as pi
Mar 20, 2018

#90%#

Explanation:

To get a percentage out of a number, simply multiply that number by #100%# - use the percentage sign at the end.

#0.9xx100%=90%#

Alternatively, if you are dealing with fractions, you can put everything over a common denominator factor of 100, and then convert to a fraction of 100.

E.g.:

#4/5xx20/20=80/100=80%#

#17/30xx10/10=170/300=56.67/100~=56.67%#

EZ as pi
Mar 20, 2018

#90%#

Explanation:

Fractions, decimals and percentages are all different ways of writing the same number.

#1/2 = 0.5 = 5/10 = 50/100 = 50%#

The decimal #0.9# means #9/10#

Change the denominator to #100#

#9/10 xx10/10 = 90/100 = 90%#

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