Question

4⅒-[2 ½- {⅚-(⅖-⁴⁄₁₅-³⁄₁₀)}]

Answer 1

$\bf \: 4 \frac{1}{10} - \bigg[2 \frac{1}{2} - \bigg \{ \frac{5}{6} - \bigg( \frac{2}{5} - \frac{4}{15} - \frac{3}{10} \bigg) \bigg\} \bigg] \\ \\ \bf \: \frac{41}{10} - \bigg[ \frac{5}{2} - \bigg \{ \frac{5}{6} - \bigg( \frac{2}{5} - \frac{4}{15} - \frac{3}{10} \bigg) \bigg\} \bigg] \\ \\ \bf \: \frac{41}{10} - \bigg[ \frac{5}{2} - \bigg \{ \frac{5}{6} - \bigg( \frac{12}{30} - \frac{8}{30} - \frac{9}{30} \bigg) \bigg\} \bigg] \\ \\ \bf \: \frac{41}{10} - \bigg[ \frac{5}{2} - \bigg \{ \frac{5}{6} - \bigg( \frac{12 - 8 - 9}{30} \bigg) \bigg\} \bigg] \\ \\ \bf \: \frac{41}{10} - \bigg[ \frac{5}{2} - \bigg \{ \frac{5}{6} - \bigg( \frac{ - 5}{30} \bigg) \bigg\} \bigg] \\ \\ \bf \: \frac{41}{10} - \bigg[ \frac{5}{2} - \bigg \{ \frac{25}{30} + \frac{5}{30} \bigg\} \bigg] \\ \\ \bf \: \frac{41}{10} - \bigg[ \frac{5}{2} - 1 \bigg] \\ \\ \bf \: \frac{41}{10} - \frac{3}{2} \\ \\ \large \blue{ \boxed{ \pmb{\frac{26}{10} } }}$