Завдання 401 - 500 » 431
Обчисліть: 1) 2/3 ∙ 5/7 = 10/21; 2) 1/5 ∙ 6/7 = 6/35; 3) 2/7 ∙ 5/9 = 10/63; 4) 4/5 ∙ 6/11 = 24/55; 5) 2/3 ∙ 3/7 = 2/7; 6) 4/5 ∙ 3/4 = 3/5; 7) 1/3 ∙ 3/11 = 1/11; 8) 3/7 ∙ 7/8 = 3/8.
Обчисліть: 1) 2/3 ∙ 5/7 = 10/21; 2) 1/5 ∙ 6/7 = 6/35; 3) 2/7 ∙ 5/9 = 10/63; 4) 4/5 ∙ 6/11 = 24/55; 5) 2/3 ∙ 3/7 = 2/7; 6) 4/5 ∙ 3/4 = 3/5; 7) 1/3 ∙ 3/11 = 1/11; 8) 3/7 ∙ 7/8 = 3/8.