=(9/4*a^2*b^6*1/2*a^4*b)/((a^9*b^6)*(1/8))=9b/a^3
((-1,5аb³)²*0,5a⁴b)/(0,5a³b²)³=1,125a⁶b⁷/0,125a⁹b⁶=9b/a³.
