Привести к общему знаменателю 7 класс 2 ____ 3(n_5) и 1 ____ 2(n+5) 2) a ______и 2(b+1) x ____ 3(1+b)
1) НОЗ: 6(n-5)(n+5) 2 / 3(n-5) = 2*2(n+5) / 6(n-5)(n+5) = 4n+20 / 6(n-5)(n+5) 1 / 2(n+5) = 3(n-5) / 6(n-5)(n+5) = 3n-15 / 6(n-5)(n+5) 2) НОЗ: 6(b+1) a / 2(b+1) = 3a / 6(b+1) x / 3(1+b) = 2x / 6(b+1)