If you wanted a numerator of 48, the answer would be 48/104. But if you wanted an answer with 48 as the DENOMINATOR, the answer would be 18/48. Idk when you say "a fraction", but you're looking for a fraction with 48 as BOTH the numerator AND the denominator? That will be equal to 1, so idk if this is the answer you're looking for, but this is how I understood it STILL HOPE IT HELPS THO!