Question

(-1/2+3/4×5/2)-3:2/5

Answer 1

Respuesta:

$-\frac{71}{8}$

Explicación paso a paso:

$(-\frac{1}{2}+\frac{3}{4}\cdot\frac{5}{2}) -3:\frac{2}{5} =\\(-\frac{1}{2}+\frac{3\cdot5}{4\cdot2}) -\frac{3\cdot5}{2} =\\(-\frac{1}{2}+\frac{15}{8}) -\frac{15}{2} =\\(-\frac{4}{8}+\frac{15}{8}) -\frac{60}{8} =\\\\\frac{11}{8}-\frac{60}{8} =-\frac{71}{8}$