Question

Mia has two ribbons. One is 60 cm long and the other is 45 cm long Mia cuts both ribbons into pieces. All the pieces have the same length. Find the greatest possible length of each piece of ribbon​

Answer 1

List factors of each:

60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60

45: 1, 3, 5, 9, 15, 45

The largest common value is 15

The greatest possible length of each is 15 cm

Answer: 15 cm.