1) 9-5/6 2) 4 4/15 + 1 5/6
1) 9 - 5/6 = 8 6/6 - 5/6 = 8 1/6 2) 4 4/15 + 1 5/6 = 4 8/30 + 1 25/30 = 5 33/30 = 6 3/30 = 6 1/10
Спасибо