`@` `\text {Ans}`
`\downarrow`
`(-12/25 x^4 y^3 z^5) \div 4/5 x^4 yz^2`
`= (-12/25 \div 4/5)*(x^4 \div x^4) * (y^3 \div y) * (z^5 \div z^2)`
`= -3/5y^2z^3`
\(\dfrac{\left(-\dfrac{12}{25}x^4y^3z^5\right)}{\dfrac{4}{5}x^4y^2}=\left(-\dfrac{12}{25}\div\dfrac{4}{5}\right)\left(x^4\div x^4\right)\left(y^3\div y\right)\left(z^5\div z^2\right)\)
\(=-\dfrac{3}{5}y^2z^3\)