21 out of 40 = 52.5%
It is: 52.5%
8.4
40 over 60 as a percent is about 66.667%.
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
12.6.
21
15/40 = 37.5 percent
40 percent
21 ÷ 40 = 0.525