Question

[anh chàng đẹp trai]

\(\frac{\left(3+\frac{1}{6}\right)-\frac{2}{5}}{\left(5-\frac{1}{6}\right)+\frac{7}{10}}\)

Answer 1

[✫¸.•°*”˜˜”*°•✫ Ṱђầภ Ḉђết ✫•°*”˜˜”*°...]

Bài làm

        \(\frac{\left(3+\frac{1}{6}\right)-\frac{2}{5}}{\left(5-\frac{1}{6}\right)+\frac{7}{10}}\)

\(=\frac{\left(\frac{18}{6}+\frac{1}{6}\right)-\frac{2}{5}}{\left(\frac{30}{6}-\frac{1}{6}\right)+\frac{7}{10}}\)

\(=\frac{\frac{19}{6}-\frac{2}{5}}{\frac{29}{6}+\frac{7}{10}}\)

\(=\frac{\frac{95}{30}-\frac{12}{30}}{\frac{145}{30}+\frac{21}{30}}\)

\(=\frac{\frac{83}{30}}{\frac{166}{30}}\)

\(=\frac{83}{30}:\frac{166}{30}\)

\(=\frac{83}{30}x\frac{30}{166}\)

\(=\frac{83}{166}\)

~ Nếu rút gọn đc thì rút, sai thì thôi, thấy nó hơi sai. ~
# Học tốt #

Answer 2

[N.Ngọc Quyết (☆๖ۣۜǤαмєŦV☆) LQ 2k1]

(3+1/6)-2/5

(5-1/6)+7/10

=(18/6+1/6) -2/5

  (30/6-1/6)+7/10

=19/6-2/5

  29/6+7/10

=95/30-12/30

  145/30+21/30

=83/30

  166/30

=83/30:166/30

=83/30x30/166

=83/166

~ Học tốt ~