Answer:
Daniela spent 1/20 of an hour longer on her English homework than her Math homework.
Explanation:
I think what your asking is how much longer Daniela took on her English homework then her math homework. If that's what your asking, you need to subtract 3/4 from 4/5.
First, the denominators need to be the same (meaning we have to multiply them):
4/5 * 4 = 16/20
3/4 * 5 = 15/20
Finally, we subtract the two fractions:
16/20 - 15/20 = 1/20