Answer:
1/8
Step-by-step explanation:
First, make the denominators the same.
1 1 x 2 1 x 4
8 4 x 2 2 x 4
...
Add them together.
1/8 + 2/8 + 4/8 = 7/8
Subtract.
8/8 (or 1) - 7/8
Solution.
= 1/8
Hope this helps!
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