Question

Simplify the following:

Answer 1

$\textbf{Solution}$

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$\frac{1}{4} + \frac{1}{5} \\ - - - - \\ 1 - \frac{3}{8 } \times \frac{3}{5} \\ \\ = \frac{5 + 4}{20} \\ - - - - - \\ 1 - \frac{9}{40} \\ \\ = \frac{9}{20} \\ - - - - - \\ \frac{40 - 9}{40} \\ \\ = \frac{9}{20} \\ - - - - \\ \frac{31}{40} \\ \\ = \frac{9 \times 40}{31 \times 20} \\ \\ = \frac{18}{31}$




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