Math
posted by Tam on .
Benita has 3 ropes measuring 54 centimeters, 108 centimeters and 189 centimeters. She cuts all of them into equal pieces. The length of each piece is the longest possible length she can cut. What is the length of each piece of cut rope? How many pieces of rope does Benita get?

Find the Highest common factor of the 3 numbers.
Each of the numbers will be divisible by that number to get the number of pieces.