If a = 3/5, b = 3, c = 1, d = 5, which equality is true?

A)d/a = b/c

B)a/b = c/d

C)b/a = c/d

D)a/d = b/c

How do I figure this out?

7 answers

a/b=(3/5)(1/3)=1/5
c/d=1/5=1/5
so A is true.

How do you figure these out? Actually do the figuring.
Thank you can you check my others please?
Bob is wrong it is B
a = 3/5, b = 3, c = 1, d = 5

a/b = c/d

3/5/3 = 1/5

1/5 = 1/5
bye
jhturduy
how do i do this
it's C