PLS HELP ASAP I REALLY NEED HELP!!!!

Answer:
11 1/5
Step-by-step explanation:
3 1/2 + 2 57/60 + 4 3/4 =
3 30/60 + 2 57/60 + 4 45/60 =
9 132/60 = 1
1 12/60 =
11 1/5
If my answer is incorrect, pls correct me!
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-Chetan K