Question

6/7x5/8x7/3x7/6x8/5=?

 

Answer 1

6/7x5/8x7/3x7/6x8/5=\(\frac{6x5x7x7x8}{7x8x3x6x5}\)=gút gọn được \(\frac{7}{3}\)

Answer 2

\(\frac{6}{7}\times\frac{5}{8}\times\frac{7}{3}\times\frac{7}{6}\times\frac{8}{5}\)

\(=\frac{6\times5\times7\times7\times8}{7\times8\times3\times6\times5}\)

\(=\)6 x 5 x 7 x 7 x 8 / 7 x 8 x 3 x 6 x 5

\(=\frac{7}{3}\)