mohon di jawab ya tolong plees

1) 1/3 + 2/4 + 3/6 = 4+6+6/ 12 = 16/12 = 4/3
2) 1 1/3 + 2 2/4 + 3 3/6 = 4/3 + 10/4 + 21/6 = 16+30+42/ 12 = 88/12 = 7 4/12 =       7 1/3
3) 5 + 2 1/3 + 0,5 = 5/1 + 7/3 + 5/10 = 150+70+15/ 30 = 235/30 = 7 25/30 = 7 5/6