Question

[Đoàn Quang Giang]

Tính nhanh 4/6 + 7/18 +17/9 + 14/6 +1/9

/ nghĩa là dấu chia phân số

Answer 1

[Nguyễn Trí Quân]

4/6 + 7/18 + 17/9 + 14/6 + 1/9

= 12/18 + 7/18 + 34/18 + 42/18 + 2/18

= ( 34/18 + 2/18 ) + ( 42/18 + 12/18 ) + 7/18

= 36/18 + 54/18 + 7/18

= 97/18

Answer 2

[ℓαƶყ]

Trl:

\(\frac{4}{6}+\frac{7}{18}+\frac{17}{9}+\frac{14}{6}+\frac{1}{9}\)

\(=\frac{12}{18}+\frac{7}{18}+\frac{34}{18}+\frac{42}{18}+\frac{2}{18}\)

\(=\left(\frac{34}{18}+\frac{2}{18}\right)+\left(\frac{42}{18}+\frac{12}{18}\right)+\frac{7}{18}\)

\(=\left(\frac{36}{18}+\frac{54}{18}\right)+\frac{7}{18}\)

\(=\frac{90}{18}+\frac{7}{18}=\frac{97}{18}\)

#z