Завдання 501 - 600 » 521
Обчисли: 1) (123/10 – 101/2) · 5/9 = (1113/10 – 101/2) · 5/9 = 1(13 - 5)/10 · 5/9 = 18/10 · 5/9 = 9/5 · 5/9 = 1; 2) 1/36 : (111/12 – 15/9) = 1/36 : (33 - 20)/36 = 1/36 : 13/36 = (1 ∙ 36)/(36 ∙ 13) = 1/13.
Обчисли: 1) (123/10 – 101/2) · 5/9 = (1113/10 – 101/2) · 5/9 = 1(13 - 5)/10 · 5/9 = 18/10 · 5/9 = 9/5 · 5/9 = 1; 2) 1/36 : (111/12 – 15/9) = 1/36 : (33 - 20)/36 = 1/36 : 13/36 = (1 ∙ 36)/(36 ∙ 13) = 1/13.