16

56

16

56

16÷2

56÷2

8

28

8÷2

28÷2

4

14

4÷2

14÷2

2

7

or

16

56

2 × 2 × 2 × 2

2 × 2 × 2 × 7

2

7

or

Common Divisors for 16 and 56 are: 2, 2 and 2

Greatest Common Divisor = 2 × 2 × 2 = 8

16÷8

56÷8

2

7

See 2/7 as a percent