40/100
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40% = 0.40 or 2/5
40% equal to fraction 30 what is value of X?
40% = 40/100 = 2/5
Write it as a fraction and then multiply by 100 %: "What percent of 40 is 4?" becomes "4 out of 40 is what percent?" which is: 4/40 x 100 % = 1/10 x 100 % = 10 %
20% is half of 40%.