This little web site shows you how to simplify fractions.

Here's a random fraction:

98

36

72

36

26

36

26

36

2

26

36

2

26÷2

36÷2

2

13

18

or

98

36

72

36

26

36

26

36

2

26

36

2

26

36

2

2 × 13

2 × 2 × 3 × 3

2

2

13

18