Question

[nguyen hoang bao tram]

21phan 11*22phan 17 *68phan 63	5phan14*7phan13*26phan 25

Answer 1

[Đinh Huệ Chi]

8 phần 3

1 phần 5

Answer 2

[Huỳnh Quang Sang]

\(\frac{21}{11}\cdot\frac{22}{17}\cdot\frac{68}{63}=\frac{21}{63}\cdot\frac{22}{17}\cdot\frac{68}{17}=\frac{1}{3}\cdot2\cdot4=\frac{8}{3}\)

\(\frac{5}{14}\cdot\frac{7}{13}\cdot\frac{26}{25}=\frac{5}{25}\cdot\frac{7}{14}\cdot\frac{26}{13}=\frac{1}{5}\cdot\frac{1}{2}\cdot2=\frac{1}{5}\)