In a vegetable garden 1/6 of the area is covered with lettuce and 5/12 with tomato plants what fraction of the area is plant with these plant?
fraction of area covered with lettuce = 1/6
fraction of area covered with tomato = 5/12
fraction of area covered with these plants = 1/6 + 5/12
L.C.M. of 6 and 12 = 2*2*3 = 12
1/6 x 2/2 =2/12
2/12 + 5/12 = 7/12