Question

5y-4 целых 3/8y+4/5y

Answer 1

$5y-4 frac{3}{8} y+ frac{4}{5} y= 4frac{8}{8} y-4 frac{3}{8} y+ frac{4}{5}y= frac{5}{8} y+ frac{4}{5} y= frac{25+32}{40} y= frac{57}{40} y=1frac{17}{40} y$