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प्रश्न
Evaluate each of the following:
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उत्तर
\[\frac{- 4}{7} - \frac{2}{- 3} = \frac{- 12}{21} - \frac{- 14}{21} = \frac{( - 12) - ( - 14)}{21} = \frac{- 12 + 14}{21} = \frac{2}{21}\]
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