(6 1/2-8 3/4):1/8+11 3/7=
(6 1/2-8 3/4):1/8+11 3/7=(13/2-35/4)*8+80/7=((26-35)/4)*8+80/7=-9*8/4+80/7=-18+80/7=(-126+80)/7=-46/7=-6 4/7
(13/2 - 35/4) *8 + 80/7 = = (26/4 -35/4)*8 + 80/7 = = (-9/4) * 8 + 80/7 = = -18 + 80/7 = = 80/7 - 126/7 = = - 46/7 = = - 6 4/7