We have to solve the equation:
[tex]\begin{gathered} \frac{3}{5}a=\frac{1}{4} \\ a=\frac{1}{4}\cdot\frac{5}{3} \\ a=\frac{5}{12} \end{gathered}[/tex]We just divide both sides by 5/3 and multiply. One side is clear a, and the other side results in 5/12.
Answer: a=5/12 (Option C)
