Question

Упростите выражение
1)4 2/9y+3 1/5-2y
2)5y-4 3/8y+4/5y

Answer 1

$4 frac{2}{9} y+3 frac{1}{5} -2y=2 frac{2}{9} y+3 frac{1}{5}$
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$5y-4 frac{3}{8} y+ frac{4}{5}y= frac{5}{8} y+ frac{4}{5}y= frac{25+32}{40}y = frac{57}{40} y=1 frac{17}{40} y$

Answer 2

спасибо