Question

como hago la siguiente operacion
5(2/5)+3(4/9)-0.25=

Answer 1

$5\left(\frac{2}{5}\right)+3\left(\frac{4}{9}\right)-0.25$
$=5\cdot \frac{2}{5}+3\cdot \frac{4}{9}-0.25$
$5\cdot \frac{2}{5}=\frac{2\cdot \:5}{5}=2$
$3\cdot \frac{4}{9}=\frac{4\cdot \:3}{9}=\frac{12}{9}=\frac{4}{3}$
$=2+\frac{4}{3}-0.25$
$=\frac{4}{3}+1.75$
$=1.33333\dots +1.75$
$=3.08333\dots$