Answer
$\dfrac{5t^6u^2 - 3t^5 + 6u^8}{t^{10}u^9}$
Work Step by Step
$\frac{5}{t^4u^7} - \frac{3}{t^5u^9} + \frac{6}{t^{10}u}$
$= \frac{5 \times t^6u^2}{t^4u^7 \times t^6u^2} -
\frac{3 \times t^5}{t^5u^9 \times t^5} + \frac{6 \times u^8}{t^{10}u \times u^8}$
$= \frac{5t^6u^2 - 3t^5 + 6u^8}{t^{10}u^9}$
