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?

1 Answer
May 7, 2018

14.

Explanation:

First, you need to understand and relate all the lengths in the question.
there are 24 xx1/8 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.