I believe it is 13/60
First, you would make them have common denominators
4/5 (12/12) is 48/60
7/12 (5/55 is 35/60
Second, you want to find the difference
48-35=13
So from that, I would assume that the difference between the two is 13/60
Answer: T=-3 5/12
Step-by-step explanation: 6 1/3-6 /13
6 1/3-9 3/4= -3 5/12
T= -3 5/12