Вправи 1101 - 1200 » 1107

Знайдіть значення виразу: 1) (–4/15 + 5/9) : (–26/45) = (–12/45 + 25/45) ∙ (–45/26) = 13/45 ∙ (–45/26) = –1/2. 2) (–33/10 – 18/15) : (–12/27) = (–39/30 – 116/30) : (–29/27) = –425/30 ∙ (–27/29) = 145/30 ∙ 27/29 = 9/2 = 41/2.