(11/2) + (12/1) + (12/1) = (11/2) + (24/1) = (11 + 24) / 2 = 35 / 2 = 17.5
2/11+1/12+1/12=0.348484848
2/11+1/12+1/12=2/11+2/12=2/11+1/6=12/66+11/66=23/66
