Posted by help please on .
7yt/3x=? /18xyt
Build each rational expression into an equivalent rational expression with the indicated denominator.

Algebra 
bobpursley,
multlipy both sides by 18xyt
7*18 xy^2 t^2 /3x=?
7*6y^2 t^2=?
check my thinking. You might want to change the 7*6 to 42