babbiedoll babbiedoll

10-10-2014
Mathematics

Answered

·show me how to solve this promblem.2.7

Verified Answer :

konrad509 konrad509

10-10-2014

\(\frac{2}{5}+(-\frac{9}{10})=\\ \frac{4}{10}-\frac{9}{10}=\\ -\frac{5}{10}=\\-\frac{1}{2}\)

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