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Negative 3 and 2/7 - -5/7 answer as a fraction

User Eyalw
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1 Answer

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let's firstly convert the mixed fractions to improper fractions.


\stackrel{mixed}{3(2)/(7)}\implies \cfrac{3\cdot 7+2}{7}\implies \stackrel{improper}{\cfrac{23}{7}} \\\\[-0.35em] ~\dotfill\\\\ -\cfrac{23}{7}-\left(-\cfrac{5}{7} \right) \implies -\cfrac{23}{7}+\cfrac{5}{7}\implies \cfrac{-23+5}{7}\implies \cfrac{-18}{7}\implies {\Large \begin{array}{llll} -2(4)/(7) \end{array}}

User GPrimola
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