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\frac{\frac{-120}{-6}}{-4\left(-5\right)}
Express \frac{\frac{\frac{-120}{-6}}{-4}}{-5} as a single fraction.
\frac{20}{-4\left(-5\right)}
Divide -120 by -6 to get 20.
\frac{20}{20}
Multiply -4 and -5 to get 20.
1
Divide 20 by 20 to get 1.
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