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Anonymous
It is: 21/40 times 100 = 52.5%
Wiki User
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21 out of 40 = 52.5%
If you mean 21/40 then multiply it by 100 = 52.5%
21 over 40 is irreducible as a fraction expression. 21 over 40 is 0.525 as a decimal expression.
21
40 percent