# SOLUTION: The word problem 1/4 of a number subtracted by 2/5 of the same number equals 15 what is the number? I know the number is 20 but I don't know why ...I just got 3/20 could you please

Algebra ->  Algebra  -> Percentage-and-ratio-word-problems -> SOLUTION: The word problem 1/4 of a number subtracted by 2/5 of the same number equals 15 what is the number? I know the number is 20 but I don't know why ...I just got 3/20 could you please      Log On

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 Question 656042: The word problem 1/4 of a number subtracted by 2/5 of the same number equals 15 what is the number? I know the number is 20 but I don't know why ...I just got 3/20 could you please show me how this is solved? Thank youAnswer by lynnlo(4155)   (Show Source): You can put this solution on YOUR website!1/4-2/5=1x5/4x5-2x4/5x4........get common denominator 5/20-8/20......................multiply 5-8/20.........................get your terms -3/20..........................answer