Question

53/10 – [ 9/2 – { 7/6 – ( 2/5 + 7/10 - 4/15)}].​

Answer 1

Answer:

23/10

Step-by-step explanation:

53/10-[9/2-{7/6-5/6}]

53/10-[9/2-{7/6-5/6}]

53/10-[9/2-2/6]

53/10-[36/12]

53/10-3

23/10

Answer 2

Answer:

$\frac{53}{10} - ( \frac{9}{2} - ( \frac{7}{6} - ( \frac{2}{5} + \frac{7}{10} - \frac{4}{15} ))) \\ \\ = \frac{53}{10} - ( \frac{9}{2} - ( \frac{7}{6} - ( \frac{12+ 21 - 8}{30} ))) \\ \\ = \frac{53}{10} - ( \frac{9}{2} - ( \frac{7}{6} - \frac{25}{30} )) \\ \\ = \frac{53}{10} - ( \frac{9}{2} - (\frac{35-25}{30})) \\ \\ = \frac{53}{10} - ( \frac{9}{2} + \frac{10}{30} ) \\ \\ = \frac{53}{10} - \frac{135-10}{30} \\ \\ = \frac{53}{10} - \frac{125}{30} \\ \\ = \frac{159-125}{30} \\ \\ = \frac{34}{30} \\ \\ = \frac{17}{15}$