Divide:
−58\dfrac{-5}{8}8−5 by 14\dfrac{1}{4}41
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−58÷14=−58×41=−5×48×1=−208=−52=−212\dfrac{-5}{8} ÷ \dfrac{1}{4}\\[1em] = \dfrac{-5}{8} \times \dfrac{4}{1}\\[1em] = \dfrac{-5 \times 4}{8 \times 1}\\[1em] = \dfrac{-20}{8}\\[1em] = \dfrac{-5}{2}\\[1em] =-2\dfrac{1}{2}8−5÷41=8−5×14=8×1−5×4=8−20=2−5=−221
Hence, −58÷14=−212\dfrac{-5}{8} ÷ \dfrac{1}{4} = -2\dfrac{1}{2}8−5÷41=−221
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The product of two rational numbers is -2. If one of them is 47\dfrac{4}{7}74, find the other.
