Question

13.25+6/13-5+7/21 como se resuelve

Answer 1

$13.25 + \frac{6}{13} - 5 + \frac{7}{21 } =$
$\frac{1325}{100} + \frac{6}{13} - \frac{5}{1} + \frac{7}{21} =$
$\frac{(1325 \times 100)+(2100 \times 6) - (27300 \times 5) + (1300 \times 7) }{27300} =$
$\frac{132500 + 12600 - 136500 + 9100}{27300} =$
$\frac{17700}{27300} = \frac{177}{273} = \frac{59}{91}$