Условие:
Выполните деление:
1) (16x^3)/(9y^4)∶(8x^8)/(27y^6);
2) (18m^3n^4)/(25p^6q^10)∶(-(4m^2n^9)/(75p^5q^12));
3) 28a^18b^19∶(14a^20b^15)/(15c^4);
4) (48x^4y^3)/(49z^9)∶(16x^7y^8);
5) (11a^5b^12)/(12cd^6)∶(55a^3b^2)/(18c^7d^4)∶(21b^6d^2)/(20a^7c^3);
6) (-(2p^4q^2)/(5m^8))^3∶(-(2p^5q^3)/(5m^6))^4.