Question

compare, using subtraction and division, the amount of sugar used in two recipes, if Recipe 1 used two and two thirds (2 2/3) cups and Recipe 2 used one and a half (1 1/2) cups. Show your calculations and then write your answers as sentences.​

Answer 1

Recipe 1 used
`1(7)/(9)` times as many cups and
`1(1)/(6)` more cups than Recipe 2.

Explanation:

By subtraction:

2
`(2)/(3)` - 1
`(1)/(2)`

`(8)/(3)` -
`(3)/(2)`

`(8*2)/(3*2)` -
`(3*3)/(2*3)`

`(16)/(6)-(9)/(6) = (7)/(6) =1(1)/(6)` cups more

By division:

2
`(2)/(3)` / 1
`(1)/(2)`

`(8)/(3)` /
`(3)/(2)`

`(8)/(3)` *
`(2)/(3)`

`(8*2)/(3*3)=(16)/(9) =1(7)/(9)` times as many cups more