Question

сос спасиье умоляю лололо

Answer 1

7 - 2 1/12 = 4 11/12
3 1/10 - 2 1/6 = 1 + (1/10-1/6) =1 + (3/30-5/30) = 1 - 2/30 = 28/30 = 14/15
6 5/6 + 2 1/2 = 8 + (5/6 + 1/2) = 8 + (5/6 + 3/6) = 8 + 1 1/3 = 9 1/3