$\frac{\frac{3}{5}-\frac{1}{3}+\frac{3}{20}}{1-\frac{5}{9}+\frac{1}{4}}$ 24/09/2021 Bởi Ariana $\frac{\frac{3}{5}-\frac{1}{3}+\frac{3}{20}}{1-\frac{5}{9}+\frac{1}{4}}$
$\dfrac{\dfrac{3}{5} – \dfrac{1}{3} + \dfrac{3}{20}}{1-\dfrac{5}{9} + \dfrac{1}{4}}$ $= \dfrac{\dfrac{3}{5} . ( 1 – \dfrac{5}{9} + \dfrac{1}{4})}{1-\dfrac{5}{9} + \dfrac{1}{4}}$ $= \dfrac{\dfrac{3}{5}.1}{1}$ $= \dfrac{3}{5}$. Bình luận
$\dfrac{\dfrac{3}{5} – \dfrac{1}{3} + \dfrac{3}{20}}{1-\dfrac{5}{9} + \dfrac{1}{4}}$
$= \dfrac{\dfrac{3}{5} . ( 1 – \dfrac{5}{9} + \dfrac{1}{4})}{1-\dfrac{5}{9} + \dfrac{1}{4}}$
$= \dfrac{\dfrac{3}{5}.1}{1}$
$= \dfrac{3}{5}$.
`(3/5-1/3+3/20)/(1-5/9+1/4)`
`=(3/5.(1-5/9+1/4))/(1-5/9+1/4`
`=3/5`