Question

Se A =-(+2/3) - (-3/5)+(-4) calcule A

Answer 1

$a = - ( \frac{2}{3} ) - ( - \frac{ 3}{5} ) + ( - 4) \\ \\ a=- \frac{2}{3} + \frac{3}{5} - 4 \\ \\ a=- \frac{61}{15}$

Answer 2

-( \frac{+2}{3} )-( \frac{-3}{5} +(-4) =-  \frac{2}{3} + \frac{3}{5} -4=- \frac{10}{15} + \frac{9}{15}- 4 =- \frac{1}{9} - 4 =- \frac{1}{4} - \frac{4}{1} =$- \frac{1}{4} - \frac{16}{4} = \frac{17}{4}$