Question

cum se rezolva calculul 1supra2+6,25+1,2(5)=?

Answer 1

$\frac{1}{2}+6,25+1,25$
$\frac{1}{2}+\frac{625}{100}+ \frac{125-12}{90}$
$\frac{1}{2} + \frac{625}{100}+ \frac{113}{90} =$

Amplificam $\frac{1}{2}$ cu 450, $\frac{625}{100}$ cu 9 si $\frac{113}{90}$ cu 10.

$\frac{450}{900} + \frac{5625}{900}+ \frac{1130}{900} =$
sau poti sa o mai scrii asa:
$\frac{450+5625+1130}{900} =$
$\frac{7205}{900}$
Simplificam cu 5.
$\frac{1441}{180}$