Question

Which equations are equivalent to a/b = c/d? choose more than one answer

Answer 1

`a d = bc`

`da = cb`

`bc = ad`

Explanation:

Given

`(a)/(b) = (c)/(d)`

Required

Choose equivalent expressions

First, cross multiply

`a * d = b * c`

`a d = bc`

The product:
`a * d = b * c` can also be rewritten as:

`da = cb`

Apply symmetric property of inequality

`a d = bc` becomes
`bc = ad`

and

`da = cb` becomes
`cb = da`