Найти разность 10 6/15 - 9 8/20 7 33/87 - 6 22/58
7 66/174 - 6 66/174 =1 10 24/60 - 9 24/60 = 1
10 6/15 - 9 8/20 =156/15-188/20= 52/5 - 47/5 = 5/5 = 1 7 33/87 - 6 22/58 =642/87-370/58= 214/29 - 185/29 = 29/29 = 1