12

60

12

60

12÷2

60÷2

6

30

6÷2

30÷2

3

15

3÷3

15÷3

1

5

or

12

60

2 × 2 × 3

2 × 2 × 3 × 5

1

5

or

Common Divisors for 12 and 60 are: 2, 2 and 3

Greatest Common Divisor = 2 × 2 × 3 = 12

12÷12

60÷12

1

5

See 1/5 as a percent