Respuesta :

Answer:

79/90 0r 29/33

Step-by-step explanation:

Let 10x=8.7 and 100x=87.7

We now have two equations. Subtracting the largest from the smallest:

100x=87.7

10x=8.7

-------------

90x=79

x=7990

Hence, 0.877777...=79/90.

Hopefully this helps!