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Thepotemich [5.8K]
3 years ago
10

Add and simplify.20(Type an integer or a simplified fraction.)

Mathematics
1 answer:
erik [133]3 years ago
7 0
-\dfrac{7}{20}+\left(-\dfrac{9}{20}\right)=\dfrac{-7}{20}+\dfrac{-9}{20}=\dfrac{-7+(-9)}{20}=\dfrac{-16}{20}=-\dfrac{16:4}{20:4}=\boxed{-\frac{4}{5}}
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