The answer is 40%, because one fifth as a percentage is 20%, and if you double 20%, it makes 40%, so to confirm, 2 fifths as a percentage = 40%.
Good luck with the rest of your maths!
2 fifths = 2 * 1/5 = 2/5
∴ 2/5 in percentage = 2/5 * 100 = 40%
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Expressed as a percentage, 1 2/5 is equal to 140 percent.
two fifths written as a decimal = 0.42/5:= 2 ÷ 5= 0.4 in decimal
7 fifths in a percentage = 140% = 7/5 * 100% = 1.4 * 100% = 140%
60%
two fifths is equal to 40% 2/5 = .4 = 40%