(a) 36/48 = 9/....
36 × .... = 48 × 9
3 × 3 × 2 × 2 × ... = 2 × 2 × 2 × 2 × 3 × 3 × 3
.... = 12
Hence, the required fraction 9/12
(b) 36/48 = .../4
36 × 4 = 48 × .....
3 × 3 × 2 × 2 × 1 = 2 × 2 × 2 × 2 × 3 × .....
3 = ....
Hence, the required fraction is 3/4