Step-by-step explanation:
[tex] = 2 \frac{3}{7} - 5 \frac{6}{7} \\ [/tex]
[tex] = \frac{2 \times 7 + 3}{7} - \frac{5 \times 7 + 6}{7} \\ [/tex]
[tex] = \frac{17}{7} - \frac{41}{7} \\ [/tex]
[tex] = \frac{17 - 41}{7} \\ [/tex]
[tex] = \frac{ - 24}{ \: 7} \\ [/tex]
☘☘☘...
