Question

Colby adds 1 2/3 cups of flour to his mixing bowl and then realizes he put too much.He takes 1/4 cup of flour back out of the bowl.How much flour did colby's recipe call for?

Answer 1

The quantity of flour need by Colby's recipe is
`1(5)/(12)` cups.

Explanation:

Given: Colby adds
`1(2)/(3)` cups of flour to his mixing bowl and then realizes he put too much.He takes
`(1)/(4)` cup of flour back out of the bowl.

We have to find the quantity of flour need by Colby's recipe.

The quantity of flour need by Colby's recipe = Number of flour cups Colby added - number of flour cups Colby taken out.

that is,

Number of flour cups Colby added =
`1(2)/(3)=(5)/(3)`

Number of flour cups Colby taken out =
`(1)/(4)`

The quantity of flour need by Colby's recipe =
`(5)/(3)-(1)/(4)`

taking LCM, we get, LCM(3,4) =12

The quantity of flour need by Colby's recipe =
`(20-3)/(12)`

The quantity of flour need by Colby's recipe =
`(17)/(12)=1(5)/(12)`

Thus, The quantity of flour need by Colby's recipe is
`1(5)/(12)` cups.