(3/2+4/3+5/4)+(6/1+7/2+8/3)
(3\2+4\3+5\4) +(6\1+7\2+8\3)= =(18\12+16\12+15\12)+(6+21\6+16\6)= =49\12+6 37\6= 4 1\12+12 1\6= =4 1\12+12 2\12= =16 3\12=16 1\4