Bài 1 : 4/9 ± 5/7 7/4 – 5/12 5/6 × 9/10 7/12 ÷ 3/8 Làm hộ mik nha Đúng cho ctlhn 26/07/2021 Bởi Ximena Bài 1 : 4/9 ± 5/7 7/4 – 5/12 5/6 × 9/10 7/12 ÷ 3/8 Làm hộ mik nha Đúng cho ctlhn
`4/9` `+` `5/7` `=` `28/63` `+` `45/63` `=` `73/63` `4/9` `-` `5/7` `=` `28/63` `-` `45/63` `=` `-17/63` `7/4` `-` `5/12` `=` `21/12` `-` `5/12` `=` `16/12` `=` `4/3` `5/6` `×` `9/10` `=` `\frac{5 × 9}{6 × 10}` `=` `45/60` `=` `3/4` `7/12` `:` `3/8` `=` `7/12` `×` `8/3` `=` `\frac{7 × 8}{12 × 3}` `=` `56/36` `=` `14/9` Bình luận
$\dfrac{4}{9}+$ $\dfrac{5}{7}=$ $\dfrac{28}{63}+$ $\dfrac{45}{63}=$ $\dfrac{73}{63}$ $\dfrac{4}{9}-$ $\dfrac{5}{7}=$ $\dfrac{28}{63}-$ $\dfrac{45}{63}=$ $-\dfrac{17}{63}$ $\dfrac{7}{4}-$ $\dfrac{5}{12}=$ $\dfrac{21}{12}-$ $\dfrac{5}{12}=$ $\dfrac{16}{12}=$ $\dfrac{4}{3}$ $\dfrac{5}{6}$ x $\dfrac{9}{10}=$ $\dfrac{45}{60}=$ $\dfrac{3}{4}$ $\dfrac{7}{12}:$ $\dfrac{3}{8}=$ $\dfrac{7}{12}$ x $\dfrac{8}{3}=$ $\dfrac{56}{36}=$ $\dfrac{14}{9}$ ~Xin hay nhất~ Bình luận
`4/9` `+` `5/7` `=` `28/63` `+` `45/63` `=` `73/63`
`4/9` `-` `5/7` `=` `28/63` `-` `45/63` `=` `-17/63`
`7/4` `-` `5/12` `=` `21/12` `-` `5/12` `=` `16/12` `=` `4/3`
`5/6` `×` `9/10` `=` `\frac{5 × 9}{6 × 10}` `=` `45/60` `=` `3/4`
`7/12` `:` `3/8` `=` `7/12` `×` `8/3` `=` `\frac{7 × 8}{12 × 3}` `=` `56/36` `=` `14/9`
$\dfrac{4}{9}+$ $\dfrac{5}{7}=$ $\dfrac{28}{63}+$ $\dfrac{45}{63}=$ $\dfrac{73}{63}$
$\dfrac{4}{9}-$ $\dfrac{5}{7}=$ $\dfrac{28}{63}-$ $\dfrac{45}{63}=$ $-\dfrac{17}{63}$
$\dfrac{7}{4}-$ $\dfrac{5}{12}=$ $\dfrac{21}{12}-$ $\dfrac{5}{12}=$ $\dfrac{16}{12}=$ $\dfrac{4}{3}$
$\dfrac{5}{6}$ x $\dfrac{9}{10}=$ $\dfrac{45}{60}=$ $\dfrac{3}{4}$
$\dfrac{7}{12}:$ $\dfrac{3}{8}=$ $\dfrac{7}{12}$ x $\dfrac{8}{3}=$ $\dfrac{56}{36}=$ $\dfrac{14}{9}$
~Xin hay nhất~