2+1/6=? 1+2/3=? 1+1/6
2 + 1/6 = 12/6 + 1/6 = 13/6
1 + 2/3 = 3/3 + 2/3 = 5/3
1 + 1/6 = 6/6 + 1/6 = 7/6
