Question

(15 upon 7 plus 6 upon 7 - 2 upon 7) minus 4 upon 7

Answer 1

Answer:

$= \frac{15}{7} + \frac{6}{7} - \frac{2}{7} - \frac{4}{7} \\ \\ = \frac{15 + 6 - 2 - 4}{7} \\ \\ = \frac{21 - 6}{7} \\ \\ = \frac{15}{7}$