Упростите выражение:

Решите задачу:

$\frac{65}{44}m^3n^2* \frac{33}{52}p^4= \frac{15}{16}m^3n^2p^4$

$\frac{52a^5}{84b^10} : \frac{39a}{102b^2} : \frac{4a^3}{45b^9}= \frac{13a^5}{21b^(10)} : \frac{13a}{34b^2} : \frac{4a^3}{45b^9} =$

$\frac{a^5}{21b^(10)} * \frac{34b^2}{a} : \frac{4a^3}{45b^9}= \frac{a^4}{21b^8} *34: \frac{4a^3}{45b^9}= \frac{a^4}{21b^8} * 34 * \frac{45b^9}{4a^3}=$

$\frac{a}{21b^8} *34* \frac{45}{4}b^9= \frac{1}{21}a *34* \frac{45}{4}b= \frac{1}{7}a *17* \frac{15}{2}b= \frac{17*15}{7*2}ab= \frac{255}{14}ab$