6) \(\frac{8}{72} + \frac{13}{72}\) - \(\frac{12}{72} - \frac{16}{72} - \frac{7}{72}\)

Решим пример:

1. $$\frac{8}{72} + \frac{13}{72} - \frac{12}{72} - \frac{16}{72} - \frac{7}{72} =$$
2. $$= \frac{8 + 13 - 12 - 16 - 7}{72} =$$
3. $$= \frac{21 - 12 - 16 - 7}{72} =$$
4. $$= \frac{9 - 16 - 7}{72} =$$
5. $$= \frac{-7 - 7}{72} =$$
6. $$= \frac{-14}{72} =$$
7. $$= -\frac{7}{36}$$

Ответ: $$\frac{-7}{36}$$