ey các cậu giúp tớ vớiiiiii c) 8 2/7-(3 4/9+4 2/7) 19/09/2021 Bởi Adalyn ey các cậu giúp tớ vớiiiiii c) 8 2/7-(3 4/9+4 2/7)
c) 8$\frac{2}{7}$-(3$\frac{4}{9}$+4$\frac{2}{7}$) = 8$\frac{2}{7}$-3$\frac{4}{9}$-4$\frac{2}{7}$ = 8$\frac{2}{7}$-4$\frac{2}{7}$-3$\frac{4}{9}$ = $4_{}$-3$\frac{4}{9}$ = $\frac{5}{9}$ Bình luận
`8“frac{2}{7}“-“(“3“frac{4}{9}“+“4“frac{2}{7}` `=“frac{58}{7}“-“(frac{31}{9}“+“frac{30}{7})` `=“frac{58}{7}“-“frac{31}{9}“-“frac{30}{7}` `=“frac{58}{7}“-“frac{30}{7}“-“frac{31}{9}` `=“frac{28}{7}“-“frac{31}{9}` `=“frac{252}{63}“-“frac{217}{63}` `=“frac{35}{63}` `=“frac{5}{9}` Bình luận
c) 8$\frac{2}{7}$-(3$\frac{4}{9}$+4$\frac{2}{7}$)
= 8$\frac{2}{7}$-3$\frac{4}{9}$-4$\frac{2}{7}$
= 8$\frac{2}{7}$-4$\frac{2}{7}$-3$\frac{4}{9}$
= $4_{}$-3$\frac{4}{9}$
= $\frac{5}{9}$
`8“frac{2}{7}“-“(“3“frac{4}{9}“+“4“frac{2}{7}`
`=“frac{58}{7}“-“(frac{31}{9}“+“frac{30}{7})`
`=“frac{58}{7}“-“frac{31}{9}“-“frac{30}{7}`
`=“frac{58}{7}“-“frac{30}{7}“-“frac{31}{9}`
`=“frac{28}{7}“-“frac{31}{9}`
`=“frac{252}{63}“-“frac{217}{63}`
`=“frac{35}{63}`
`=“frac{5}{9}`