Question

Зайди значения виразу 6,5×2,8-23:(1 2/7+3 5/7

Answer 1

Ответ:

$18.2-\frac{23}{\frac{1*7+2}{7}+\frac{3*7+5}{7} }$

$18.2-\frac{23}{\frac{9}{7}+ \frac{26}{7} }$

$18.2-\frac{23}{\frac{35}{7} }$

$18.2-\frac{23}{5}$

$\frac{91}{5} -\frac{23}{5}$

$\frac{68}{5}$