Question

prove that \[\frac{a}{b}+\frac{c}{d} = \frac{ad + cb}{bd} ; b,d \neq 0\] prove that \[\frac{a}{b}+\frac{c}{d} = \frac{ad + cb}{bd} ; b,d \neq 0\] @Mathematics

Answer 1

Come on mathemagician... you can do it!

Answer 2

\[(a*b^{-1} + c*d^{-1})(bd)*(bd)^{-1}\]thats it

Answer 3

you first distribute the (bd) and then you put everything under the (bd)^-1