50

100

50

100

50÷2

100÷2

25

50

25÷5

50÷5

5

10

5÷5

10÷5

1

2

or

50

100

2 × 5 × 5

2 × 2 × 5 × 5

1

2

or

Common Divisors for 50 and 100 are: 2, 5 and 5

Greatest Common Divisor = 2 × 5 × 5 = 50

50÷50

100÷50

1

2

See 1/2 as a percent