40â„100 = 0.4
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that would be 2.5% method 100 /40 = 2.5 you need to get the 40 over 100 to find out the percentage or work it out as a decimal in the same way.
1 over 100 as a decimal is 0.01
4 over 100 in decimal is 0.04. we take 4/100 = 0.04 in decimal
Expressed as a decimal fraction, 38/40 = 0.95
97 over 100 in decimal form is 0.97