Question

Помогите прошу решить

Answer 1

$4,8cdotleft(2frac13-3frac38right)+2frac49=mathbf{-2frac59}\\1);2frac13-3frac38=frac73-frac{27}8=frac{7cdot8-27cdot3}{24}=frac{56-81}{24}=-frac{25}{24}\\2);4,8cdotleft(-frac{25}{24}right)=-frac{48}{10}cdotfrac{25}{24}=-frac22cdotfrac51=-5\\3);-5+2frac49=-2frac59$