Find the product :
7×177 \times \dfrac{1}{7}7×71
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We have:
=7×17=71×17=7×11×7=77=1[Dividing both by 7]\begin{array}{ll} \phantom{=} 7 \times \dfrac{1}{7} \\ = \dfrac{7}{1} \times \dfrac{1}{7} \\ = \dfrac{7 \times 1}{1 \times 7} \\ = \dfrac{7}{7} \\ = 1 & \text{[Dividing both by 7]} \end{array}=7×71=17×71=1×77×1=77=1[Dividing both by 7]
∴ The answer is 1
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