The given expression is [tex] \frac{3}{5a} \frac{1}{a^{2}y} [/tex]
The question is asking us to simplify the given expression.
The numerators are 3 and 1 and the denominators are 5a and [tex] a^{2} [/tex]
The numerator is multiplied to numerator and denominator to denominator
Multiplying we have:
[tex] \frac{3}{5a} .\frac{1}{a^{2}} =\frac{3}{5 .a.a^{2}} =\frac{3}{5a^{3}} [/tex]