Answer:
Step-by-step explanation:
You're trying to solve
[tex]\frac{a}{m} =\frac{n}{p}[/tex] for a, right?
When you have a fraction set equal to a fraction, you can cross multiply to get rid of the fractions. That would mean that
ap = mn. Solving for a means that you divide both sides by p:
[tex]a=\frac{mn}{p}[/tex]
