вычислите дробь 5/6-1/15, 7/6-3/10,1/4-1/5,2/3-2/11
5/6 - 1/15 = 75/90 - 6/90 = 69/90 = 23/30 7/6 - 3/10 = 70/60 - 18/60 = 52/60 = 13/15 1/4 - 1/5 = 0,25 - 0,2 = 0,05 2/3 - 2/11 = 22/33 - 6/33 = 16/33
5/6-1/15=23/30 7/6-3/10=26/30 1/4-1/5=1/20 2/3-2/11=16/33