Завдання 401 - 500 » 407
Обчисліть: 1) 9/10 + 3/5 + 6/7 = 63/70 + 42/70 + 60/70 = 165/70 = 225/70 = 25/14; 2) 1/3 + 1/4 + 1/5 = 20/60 + 15/60 + 12/60 = 47/60; 3) 7/8 + 2/3 + 1/6 = 21/24 + 16/24 + 4/24 = 41/24 = 117/24.
Обчисліть: 1) 9/10 + 3/5 + 6/7 = 63/70 + 42/70 + 60/70 = 165/70 = 225/70 = 25/14; 2) 1/3 + 1/4 + 1/5 = 20/60 + 15/60 + 12/60 = 47/60; 3) 7/8 + 2/3 + 1/6 = 21/24 + 16/24 + 4/24 = 41/24 = 117/24.