30

48

30

48

30÷2

48÷2

15

24

15÷3

24÷3

5

8

or

30

48

2 × 3 × 5

2 × 2 × 2 × 2 × 3

5

8

or

Common Divisors for 30 and 48 are: 2 and 3

Greatest Common Divisor = 2 × 3 = 6

30÷6

48÷6

5

8

See 5/8 as a percent