First, you simply 225 by 96 ( not fully) and you get 2 27/96. Then you divide it by 9 and you get 2 9/32. You can change it from mixed form to just a regular fraction.
WORKING OUT 225 ÷ 96 = 2 (192) r33 So 225/96 contains 2 wholes Which leaves us with 2 33/96 But you can simplify that sum to 2 11/32 Which is the lowest possible