Question

Joshua wants to make cookies. To make cookies, he needs 1 1/8 cups of flour per batch of cookies. Joshua has 18 cups of flour. How many batches of cookies can he make? *

Answer 1

Answer: He can make 16 batches of cookies.

Explanation:

Given: . To make cookies, Joshua needs
`1\frac18` cups of flour per batch of cookies.

i.e. 1 Batch requires =
`1\frac18` cups of flour

=
`(9)/(8)` cups [convert mixed fraction to improper fraction.]

Now if 1 batch =
`(9)/(8)` cups (i)

Then, 1 cup =
`(8)/(9)` batch. (ii) [Multiply (i) by
`(8)/(9)` ]

Joshua has 18 cups of flour.

That means , 18 cup =
`18*(8)/(9)=2*8=16` batch. [Multiply (ii) by 18]

∴ He can make 16 batches of cookies.