A3/4
B5/7
C2/5
D8/9
Answer:
Related Questions:
If ab=cd=5\frac{a}{b}=\frac{c}{d}=5ba=dc=5, then 3a+4c3b+4d\frac{3a+4c}{3b+4d}3b+4d3a+4c is equal to?