# How do you simplify (15a^2)/(25a^4 )?

$\frac{15 {a}^{2}}{25 {a}^{4}} = \frac{3}{5 {a}^{2}}$ with the restriction $a \ne 0$
$\frac{15 {a}^{2}}{25 {a}^{4}} = \frac{3 \cdot 5 {a}^{2}}{5 {a}^{2} \cdot 5 {a}^{2}} = \frac{3}{5 {a}^{2}} \cdot \frac{5 {a}^{2}}{5 {a}^{2}} = \frac{3}{5 {a}^{2}}$