Question

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by how many is 3 fours of 20 greater than 3 fiths of 20?

Answer 1

3

To calculate a fraction of a quantity, multiply the quantity by the numerator of the fraction and divide by the denominator

`(3)/(4)` of 20 = (3 × 20 )/4 =
`(60)/(4)` = 15

`(3)/(5)` of 20 = (3 × 20 )/5 =
`(60)/(5)` = 12