Respuesta :

Answer:

a) -5/6

Step-by-step explanation:

[tex] - \frac{5}{7} \div \frac{6}{7} [/tex]

keep, change, flip

[tex] - \frac{5}{7} \times \frac{7}{6} [/tex]

[tex] - \frac{35}{42} [/tex]

simplify

35 ÷7=5

42÷7= 6