Tom practiced piano 1 1/3 hours on monday and 5/6 hours on tuesday. how much did he practice in all those two days

I’m stuck on this equation, anyone got the answer?

Amajor grocery store chain is trying to cut down on waste. currently, they get peaches from two different distributors, whole fruits and green grocer. out of a two large shipments, the manager randomly selects items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or other problems. she then makes a confidence interval. is there a significant difference in the quality of the peaches between the two distributors? 95% ci for pw-pg: (0.064, 0.156)

Add. express your answer in simplest form. 12 9/10+2 2/3 = i need u guys to me find the answer to this question