Question

$\frac{3}{2x} + \frac{5}{4x} +4$

Answer 1

         $\frac{2}{2x} + \frac{5}{4x} +4 \\ \\ = \frac{2.2}{2.2x} + \frac{5}{4x} +4 \\ \\ =\frac{4}{4x} + \frac{5}{4x} +4 \\ \\ = \frac{9}{4x} + 4$