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Answer please with full explanation​

Answer»

\frac{2}{5} \times ( - \frac{3}{7}) - \frac{1}{9} \times \frac{6}{7} + \frac{1}{14} \times \frac{2}{5}

= \frac{2}{5} \times ( - \frac{3}{7} ) - \frac{1}{3} \times \frac{2}{7} + \frac{1}{7} \times \frac{1}{5}

= - \frac{6}{35} - \frac{2}{21} + \frac{1}{35}

= \frac{ - 18 - 10 + 3}{105}

= \frac{ - 28 + 3}{105}

= - \frac{25 }{105}

= - \frac{5}{21}


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