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Earn +20 ptsQ: What is the ratio of 81 to 90?
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What percent of 90 is 81?
100*81/90 = 90%
What is a number so that 81 is 90 percent of that number?
It is 90 because 90% of 90 = 81
What is the ratio between 144 and 81?
144:81 can be reduced to a 16:9 ratio.
What is the LCM of 81 90?
The LCM is 810.
What is the ratio of 90 18?
The ratio of 90 to 18 is written as 90/18
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