Question

Calculati : 2/7 + 1/2 + 13/28

Answer 1

$\frac{2}{7} + \frac{1}{2} + \frac{13}{28} = ( \frac{2}{7})^4 + ( \frac{1}{2})^1^4 + \frac{13}{28} = \frac{8}{28} + \frac{14}{28} + \frac{13}{28} = \frac{22}{28} + \frac{13}{28} = \frac{35}{28}$