Question

A roll of ribbon can cut into lengths of 64cm, 72cm, 80cm without any ribbon being left over. Find the least length of ribbon in the roll.​

Answer 1

Answer:2880 cm

Explanation:

Take the Least Common Multiple (LCM)

Answer 2

Given :

• A roll of ribbon can cut into lengths of 64cm, 72cm, 80cm without any ribbon being left over.

To find :

• The least length of ribbon in the roll =?

Step-by-step explanation :

It is Given that,

A roll of ribbon can cut into lengths of 64cm, 72cm, 80cm without any ribbon being left over.

We have to find the least length of ribbon in the roll. So, find the LCM (Lowest Common Factor) of 64cm, 72cm and 80cm.

•°• LCM of 64cm, 72cm and 80cm = 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 = 2,880.

Therefore, 2,880 cm is the least length of ribbon in the roll.