Вправи 101 - 200 » 147

147. Спростіть вираз: 1) (6a^4 b^2)/(35c^3 ) • (14b^2)/(a^7 c^5 ) • (5a^3 c^8)/(18b^4 ) = (6a^4 b^2 • 14b^2 • 5a^3 b^8)/(35c^3 a^7 c^5 • 18b^4 ) = (2a^7 b^4 c^8)/(3 • a^7 b^4 c^8 ) = 2/3; 2) (33m^8)/(34n^8 ) : (88m^4)/(51n^4 ) : (21m^6)/(16n^2 ) = (33m^8 • 51n^4 • 16n^2)/(34n^8 • 88m^4 • 21m^6 ) = (3m^8 n^6)/(7n^6 m^10 ) = 3/(7m^2 n^2 ); 3) ((m^5 n)/(3p^3 ))3 : (m^10 n^5)/(54p^8 ) = (m^15 n^3 • 54p^8)/(27p^9 • m^10 n^5 ) = (2m^5)/(pn^2 ); 4) ((2a^5)/y^6 )4 : ((4a^6)/y^8 )3 = (16a^20 • y^24)/(y^24 • 64a^18 ) = a^2/4.