a) 14 – 6/9 = 13 + 1 - 6/9 = 13 + 9/9 - 6/9 = 13 + 3/9 = 13 3/9 = 13 1/3
Ответ: $$13 \frac{1}{3}$$
б) 82 – 7/15 = 81 + 1 - 7/15 = 81 + 15/15 - 7/15 = 81 + 8/15 = 81 8/15
Ответ: $$81 \frac{8}{15}$$