Question

efectua la siguiente suma
E=(2/3×+1/5) + (2/3×-1/2) + (2/5 - 1/3) + (1/4-4/5×)

Answer 1

$e = ( \frac{2}{3} x + \frac{1}{5} ) + ( \frac{2}{3} x - \frac{1}{2} ) + ( \frac{2}{5} x - \frac{1}{3} ) + ( \frac{1}{4} - \frac{4}{5} x) \\ e = \frac{2}{3} x + \frac{1}{5} + \frac{2}{3} x - \frac{1}{2} + \frac{2}{5} x - \frac{1}{3} + \frac{1}{4} - \frac{4}{5} x \\ e = 2( \frac{2}{3}x) + \frac{2}{5} x - \frac{4}{5} x + \frac{1}{5} - \frac{1}{2} - \frac{1}{3} + \frac{1}{4} \\ e = \frac{4}{3} x - \frac{ 2}{5} x + \frac{9}{20} - \frac{5}{6} \\ e = \frac{18}{15} x - \frac{23}{60} \\ e = \frac{6}{5} x - \frac{23}{60}$