Question

0,4 plus 5 supra 4 ori 7 supra 3 minus 7 supra 12 împărțit la 2,5 dau coronița și inimi​

Answer 1

Transformam :

$0,4=\frac{40}{100} = \frac{2}{5}\\\\2,5 = \frac{25}{100}=\frac{1}{4}$

Calculam :

$\frac{2}{5} + \frac{5}{4} * \frac{7}{3} - \frac{7}{12} : \frac{1}{4} = \\\\=\frac{2}{5} + \frac{35}{12} - \frac{7}{12} *4 \\\\=\frac{2}{5} + \frac{35}{12} - \frac{7}{3} \\\\=\frac{^{12/}2}{5} + \frac{^{5/}35}{12} - \frac{^{20/}7}{3} \\\\=\frac{24}{60} + \frac{175}{60} - \frac{140}{60} \\\\=\frac{24+175-140}{60} \\\\=\frac{59}{60}$