Answer :
for 3/8 you can times by 12 to make 36/96
for 5/12 you can times by 8 to make 40/96
now that they have the same denominators (bottoms), you can add them to make
36/96 + 40/96 =76/96
simplified
= 38/48
=19/24
3/8 +b 5/12= 8/20=2/5
3+5 = 8
8+12= 20
common denomenator 4
8 div. by 4 = 2
20 div. 4 = 5
ans. 2/5
3+5 = 8
8+12= 20
common denomenator 4
8 div. by 4 = 2
20 div. 4 = 5
ans. 2/5