Evaluate
-\frac{81}{80}=-1.0125
Factor
-\frac{81}{80} = -1\frac{1}{80} = -1.0125
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\frac{-\frac{3120+39}{40}}{78}
Multiply 78 and 40 to get 3120.
\frac{-\frac{3159}{40}}{78}
Add 3120 and 39 to get 3159.
\frac{-3159}{40\times 78}
Express \frac{-\frac{3159}{40}}{78} as a single fraction.
\frac{-3159}{3120}
Multiply 40 and 78 to get 3120.
-\frac{81}{80}
Reduce the fraction \frac{-3159}{3120} to lowest terms by extracting and canceling out 39.
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