§ 5. Звичайні дроби » 1076

Обчисліть різницю: 1) 42/3 – 21/3 = (4 – 2) + (2/3 – 1/3) = 21/3 2) 72/9 – 32/9 = (7 – 3) + (2/9 – 2/9) = 4 3) 51/4 – 2 = (5 – 2) + 1/4 = 31/4 4) 4 – 12/7 = (3 – 1) + (7/7 – 2/7) = 25/7 5) 62/5 – 34/5 = (5 – 3) + (7/5 – 4/5) = 23/5 6) 97/12 – 211/12 = (8 – 2) + (19/12 – 11/12) = 68/12