Роздiл 2. Вирази i тотожностi » 48

Обчисліть: 1) 161/4 + 141/12 = 16 + 14 + (1^(\3)/4 + 1^(\1)/12) = 30 + (3+1)/12 = 304/12 = 301/3; 2) 211/2 – 91/3 = (21 – 9) + (1/2 – 1/3) = 12 + (3-2)/6 = 12 + 1/6 = 121/6; 3) 92/7 • 7 = 65/7 • 7/1 = (65 • 7)/(7 • 1) = 65/1 = 65.