Question

Sarah’s craft project uses pieces of yarn that are 1/8 yard long. She has a piece of yarn that is 3 yards long. How many 1/8 - yard pieces can she cut and still have 1 and 1/4 yards left?

Answer 1

14.

Explanation:

First, you need to understand and relate all the lengths in the question.
there are 24 `xx` `1/8` yards in `3` yards. because 3 yards is the same as `3xx8/8` yards, and is equivalent to `24/8` yards.

there must be 1 and `1/4` yards left.

`1=4/4`, so `1 1/4` yards is the same as `5/4` yards.

`(5xx2)/(4xx2) = 10/8`, there are 10 pieces of `1/8` yards in `1` and `1/4` yards.

in order to have the length of 10 pieces of `1/8` yards left in the original length of 24 pieces of `1/8` yards, `24-10=14` pieces of `1/8` yards are cut off.