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Mathematics

Evaluate:

5÷(1011)-5 ÷ \Big(-\dfrac{10}{11}\Big)

Rational Numbers

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Answer

5÷1011=5×1110=5×111×10=5510=112=512-5 ÷ -\dfrac{10}{11}\\[1em] = -5 \times -\dfrac{11}{10}\\[1em] = \dfrac{5 \times 11}{1 \times 10}\\[1em] = \dfrac{55}{10}\\[1em] = \dfrac{11}{2}\\[1em] = 5\dfrac{1}{2}

Hence, 5÷(1011)=512-5 ÷ \Big(-\dfrac{10}{11}\Big) = 5\dfrac{1}{2}

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