Завдання 201 - 300 » 255
Обчисли: 1) 19/20 – 3/8 – 1/5 = (38 - 15 - 8)/40 = 15/40 = 3/8; 2) 13/15 – 1/5 + 1/6 = (26 - 6 + 5)/30 = 25/30 = 5/6; 3) 1/2 – 4/25 + 3/20 = (50 - 16 + 15)/100 = 49/100.
Обчисли: 1) 19/20 – 3/8 – 1/5 = (38 - 15 - 8)/40 = 15/40 = 3/8; 2) 13/15 – 1/5 + 1/6 = (26 - 6 + 5)/30 = 25/30 = 5/6; 3) 1/2 – 4/25 + 3/20 = (50 - 16 + 15)/100 = 49/100.