Question

For his craft project, James bought 10 pieces of ribbon that were each 2.1 feet long. How many total yards of ribbon did James buy?

Answer 1

2.1 (ribbon length) * 10 (ribbon #) = 21

There is 1 yard in 3 feet. Divide by 3 to convert.

21 / 3 = 7

Therefore he brought 7 yards of ribbon.

Answer 2

2.1 times 10 = 21 feet
to convert feet into yards you must divide by 3 
21/3 = 7 yards