$$= \frac { a ^ { 4 } \times b ^ { 5 } c ^ { 2 } } { m ^ { 2 } \times n ^ { 3 } \times ( b ^ { 2 } ) ^ { c } }$$
$\frac{\left(\frac{c}{m}\right)^{2}a^{4}b^{5}}{n^{3}\left(b^{2}\right)^{c}}$
$\frac{4\times \left(\frac{a}{n}\right)^{3}\times \left(\frac{c}{m}\right)^{2}b^{5}}{\left(b^{2}\right)^{c}}$
