Answer:
A, D, C, B
Explanation:
A = 3/4 + 5/4 = 8/4 = 4
B = 7/4 + 5/2
= LCM of 4 and 2 = 8
= 14/8 + 20/8 = 34/8 =17/4
C = 4/3 + 5/3 = 9/3 = 3
D = 11/3 - 4/3 = 7/3
A=4, B=17/4, C=3, D=7/3
LCM of 4 and 3 is = 12
= 16/12, 51/12, 36/12, 28/12
Sorry if I am wrong :)