Question

-3/(-15/16):16/17:(-17/18):(-18/19):(-19/20)...ПЖ По действиям.

Даю 20 б.

Answer 1

$- 3 div ( - frac{15}{16} ) = - 3 times ( - frac{16}{15} ) = \ frac{16}{5}$
$frac{16}{5} div frac{16}{17} = frac{16}{5} times frac{17}{16} = frac{17}{5}$
$frac{17}{5} div ( - frac{17}{18} ) = frac{17}{5} times ( - frac{18}{17} ) = \ - frac{18}{5}$
$- frac{18}{5} times ( - frac{19}{18} ) = frac{19}{5} \ frac{19}{5} times ( - frac{20}{19} ) = - 4$
Ответ:-4