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Problem
Problem
Simplify the compound fraction:
2
x
−
1
y
4
x
2
−
1
y
2
\frac{\frac{2}{x} - \frac{1}{y}}{\frac{4}{x^2} - \frac{1}{y^2}}
x
2
4
−
y
2
1
x
2
−
y
1
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