In order from smallest to largest 0.9,75%,4/5

You get 75% which is .75, then you get 4/5 which is .80, and then .90

Greetings! 

In order to compare these number, they all must all be represented in the same form:

1) 0.9 = 0.9
2) 75% = 0.75
3) 4/5 = 0.8

0.75<0.8<0.9

Therefore, the order from smallest to largest is:
75%,4/5,0.9

Hope this helps.
-Benjamin

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