А) 5/6 - 3/4 = 10/12 - 9/12 = 1/12Б) 1/3 + 1/5 = 5/15 + 3/15 = 8/15В) 3/10 + 1/2 = 6/20 + 10/20 = 16/20 = 4/5Г) 9/20 + 3/8 = 18/40 + 15/40 = 33/40
А) 5/6 - 3/4 = 10/12 - 9/12 = 1/12
Б) 1/3 + 1/5 = 5/15 + 3/15 = 8/15
В) 3/10 + 1/2 = 6/20 + 10/20 = 16/20 = 4/5
Г) 9/20 + 3/8 = 18/40 + 15/40 = 33/40