A.4/7 x 3/4 B.4x 2/3 C.7/4 x 14/3 D.2/7 x 7/3
A. 12/28 or 3/7
B. 8/3 or 2 2/3
C. 8 2/12 or 8 1/6
D. 14/21 or 2/3