Evaluate:
−27−3−14\dfrac{-2}{7} - \dfrac{3}{-14}7−2−−143
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−27−3−14=−27−−314\dfrac{-2}{7} - \dfrac{3}{-14}\\[1em] =\dfrac{-2}{7} - \dfrac{-3}{14}7−2−−143=7−2−14−3
LCM of 7 and 14 is 2 x 14 = 14
−2×27×2−−3×114×1=−414−−314=−4−(−3)14=−4+314=−114\dfrac{-2 \times 2}{7 \times 2} - \dfrac{-3 \times 1}{14 \times 1}\\[1em] = \dfrac{-4}{14} - \dfrac{-3}{14}\\[1em] = \dfrac{-4 - (-3)}{14}\\[1em] = \dfrac{-4 + 3}{14}\\[1em] = \dfrac{-1}{14}7×2−2×2−14×1−3×1=14−4−14−3=14−4−(−3)=14−4+3=14−1
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