Question
Evaluate: $\frac{-11}{12}+\frac{5}{16}+\frac{-3}{8}$

Answer


$\begin{aligned} & \frac{-11}{12}+\frac{5}{16}+\frac{-3}{8} \\ & =\frac{-11 \times 4}{12 \times 4}+\frac{5 \times 3}{16 \times 3}+\frac{-3 \times 6}{8 \times 6} \quad \text { ( } \because \text { L.C.M. of 8, 12, 16 =48) } \\ & =\frac{-44}{48}+\frac{15}{48}+\frac{-18}{48} \\ & =\frac{-44+15-18}{48} \\ & =\frac{-62+15}{48}=\frac{-47}{48}\end{aligned}$

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