MathDB

Basil needs to solve an exercise on summing two fractions

\dfrac{a}{b}

and

\dfrac{c}{d}

, where

a

b

c

d

are some non-zero real numbers. But instead of summing he performed multiplication (correctly). It appears that Basil's answer coincides with the correct answer to given exercise. Find the value of

\dfrac{b}{a} + \dfrac{d}{c}

Problem Statement