Question

Resolva: ......
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Answer 1

$h) \\ \\ \left[( \frac{4}{3} + \frac{1}{2}) - 2 }\right] + 3 \\ \\ \left[( \frac{8 + 3}{6}) - 2 }\right] + 3 \\ \\ \left[( \frac{11}{6}) - 2 }\right] + 3 \\ \\ \left[ \frac{11-12}{6}}\right] + 3 \\ \\ \frac{-1}{6} + 3 \\ \\ \frac{-1 + 18}{6} \\ \\ => \dfrac{17}{6}$

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i)
$(\frac{4}{3} + \frac{2}{5}) + \left[1 + (\frac{2}{8} - \frac{1}{7}) \right] \\ \\ \\ (\frac{20 + 6}{15}) + \left[1 + (\frac{14 - 8}{56} ) \right] \\ \\ \\ (\frac{26}{15}) + \left[1 + (\frac{6}{56} ) \right] \\ \\ \\ (\frac{26}{15}) + \left[1 + (\frac{6}{56} ) \right] \\ \\ \\ (\frac{26}{15}) + \left[1 + (\frac{3}{28} ) \right] \\ \\ \\ (\frac{26}{15}) + \left[\frac{28 + 3}{28}\right] \\ \\ \\ (\frac{26}{15}) + \frac{31}{28} \\ \\ \\ => \frac{1193}{420}$

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j)
$(\dfrac{2}{7} + \dfrac{1}{7}) - 3 + (\dfrac{4}{5} + 1) \\ \\ \\ (\dfrac{2 + 1 }{7} + \dfrac{1}{7}) - 3 + (\dfrac{4 + 5}{5}) \\ \\ \\ (\dfrac{3}{7}) - 3 + (\dfrac{9}{5}) \\ \\ \\ (\dfrac{3}{7}) + (\dfrac{-15 + 9}{5}) \\ \\ \\ \dfrac{3}{7} + \dfrac{-6}{5} \\ \\ \\ \dfrac{15-42}{35} \\ \\ \\ => -\dfrac{27}{35}$

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k)
$\dfrac{1}{8} + \dfrac{2}{8}+ \dfrac{4}{8} + \dfrac{1}{8} \\ \\ \\ \dfrac{1 + 2 + 4 + 1 }{8} \\ \\ \\ \dfrac{8}{8} \\ \\ => 1$