-20/23 +2/3 -3/23 + 2/5 + 14/30

-20/23 +2/3 -3/23 + 2/5 + 14/30

2 bình luận về “-20/23 +2/3 -3/23 + 2/5 + 14/30”

  1. $\frac{-20}{23}$ $+$ $\frac{2}{3}$ $-$ $\frac{3}{23}$ $+$ $\frac{2}{5}$ $+$ $\frac{14}{30}$ 
    $=$ $\frac{-20}{23}$ $+$ $\frac{2}{3}$ $+$ $\frac{-3}{23}$ $+$ $\frac{2}{5}$ $+$ $\frac{14}{30}$ 
    $=$ $($ $\frac{-20}{23}$ $+$ $\frac{-3}{23}$ $)$ $+$ $($ $\frac{2}{3}$ $+$ $\frac{2}{5}$ $)$ $+$ $\frac{14}{30}$
    $=$ $\frac{-23}{23}$ $+$ $\frac{16}{15}$ $+$ $\frac{14}{30}$
    $=$ $-1$ $+$ $($ $\frac{16}{15}$ $+$ $\frac{14}{30}$ $)$
    $=$ $-1$ $+$ $\frac{23}{15}$
    $=$ $\frac{-15}{15}$ $+$ $\frac{23}{15}$
    $=$ $\frac{8}{15}$
      $\color{green}{{️Hoidap}}$$\color{yellow}{{️247}}$                 $\color{pink}{{️৹Phamdiepjessica}}$

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