§ 5. Звичайні дроби » 1075

Обчисліть різницю: 1) 57/8 – 21/8 = (5 – 2) + (7/8 – 1/8) = 36/8 2) 43/4 – 13/4 = (4 – 1) + (3/4 – 3/4) = 3 3) 62/3 – 4 = (6 – 4) + 2/3 = 22/3 4) 3 – 1/3 = 2 + (3/3 – 1/3) = 22/3 5) 5 – 23/4 = (4 – 2) + (4/4 – 3/4) = 21/4 6) 7 – 63/10 = (6 – 6) + (10/10 – 3/10) = 7/10 7) 82/9 – 25/9 = (7 – 2) + (11/9 – 5/9) = 56/9 8) 53/11 – 7/11 = 4 + (14/11 – 7/11) = 47/11 9) 104/15 – 65/15 = (9 – 6) + (19/15 – 5/15) = 314/15