Розділ 6. Звичайні дроби » 999

Обчисліть: 1) 1 – 2/16 – 7/16 = 1 – (2/16 + 7/16) = 1 – 9/16 = 16/16 – 9/16 = 7/16 2) 1 – 11/45 – 22/45 = 1 – (11/45 + 22/45) = 1 – 33/45 = 45/45 – 33/45 = 12/45 3) 1 – (16/33 + 14/33) = 1 – 30/33 = 33/33 – 30/33 = 3/33 4) 1 – (27/50 – 6/50) = 1 – 21/50 = 50/50 – 21/50 = 29/50