Question

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Answer 1

1)
$frac{18}{27} - ( frac{3}{29} + ( frac{7}{29} - frac{4}{29} )) = frac{18}{29} - ( frac{3}{29} + frac{3}{29} ) = frac{18}{29} - frac{6}{29} = frac{12}{29}$
2)
$frac{19}{27} - ( frac{6}{27} + ( frac{10}{27} - frac{7}{27} )) = frac{19}{27} - ( frac{6}{27} + frac{3}{27}) = frac{19}{27} - frac{9}{27} = frac{10}{27}$