Answer:
79/90
Explanation:
Let 10 x = 8.7 and 100 x = 87.7
We now have two equations. Subtracting the largest from the smallest:
100 x = 87.7
10 x = 8.7
-------------
90 x = 79
x = 79 /90
Hence,
0.877777 ... = 79 /90
.
The answer is 877/1000
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