Сократите дробь 1) 15a^4b^7/51a^7b^4; 2) 132x^5y^6/231x^6y^5.
1) 15а⁴b⁷ = 5b³ 51a⁷b⁴ 17a³ 2) 132x⁵y⁶ = 4y 231x⁶y⁵ 7x