25

75

25

75

25÷5

75÷5

5

15

5÷5

15÷5

1

3

or

25

75

5 × 5

3 × 5 × 5

3 × ~~5~~ × ~~5~~

1

3

or

Common Divisors for 25 and 75 are: 5 and 5

Greatest Common Divisor = 5 × 5 = 25

25÷25

75÷25

1

3

See 1/3 as a percent