А) 8/9 + 14/27+1/9 = 8/9 + 1/9 + 14/27 = 9/9 + 14/27 = 1(это 9/9) + 14/27 = 1 целая 14/27
б) 3/17 + 8/102 + 14/17= 3/17+14/17+8/102=1(это 17/17)+8/102=1 целая 8/102
в) 1/33+3/11+2/11=1/33+5/11= 16/33
г) 2/5+1/20+4/5= 6/5+1/20=1 целая 1/5+1/20=1 целая 5/20