Question

1 supra 2 - (1 supra 4 -1 supra 8 )

Answer 1

$\frac{1}{2 } - ( \frac{1}{4 } - \frac{1}{8} ) = \frac{4}{8} - (\frac{2}{8} - \frac{1}{8}) = \frac{4}{8 } - \frac{1}{8} = \frac{3}{8}$