Question

3/5 - (-1/2 +3/4) + (1/10-5/8) =

Answer 1

$\LARGE\tt{} \dfrac{3}{5} - \left( - \dfrac{1}{2} + \dfrac{3}{4} \right) + \left( \dfrac{1}{10} - \dfrac{5}{8} \right) \\ \\ \LARGE\tt{} \dfrac{3}{5} - \dfrac{1}{4} + \left( \dfrac{1}{10} - \dfrac{5}{8} \right) \\ \\ \LARGE\tt{} \dfrac{3}{5} - \dfrac{1}{4} + \left( - \dfrac{21}{40} \right) \\ \\\LARGE\tt{} \dfrac{3}{5} - \dfrac{1}{4} - \dfrac{21}{40} \\ \\ \LARGE\tt{} \dfrac{24 - 10 - 21}{40} \\ \\ \LARGE\tt{} \dfrac{ - 7}{40} \\ \\ \LARGE\tt{} - \dfrac{7}{40} \\ \\ \LARGE\tt{} \boxed{ - \dfrac{7}{40} }$

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