Question 63214
{{{y^(3/5)/y^2}}} To divide using indices subtract the powers.
{{{y^(3/5 - 2)}}}
{{{y^(-7/5)}}} A negative power means 1 over the same positive power
{{{1/(y^(7/5))}}}

This doesn't seem to show up correctly on the screen but the correct answer is 1/y^7/5. Look at the source as they may make it easier to follow what has been done.