Question

Tính theo cách hợp lý nhất.

\(1\frac{1}{3}\)x\(1\frac{1}{4}\)x\(1\frac{1}{5}\)x\(1\frac{1}{6}\)x\(1\frac{1}{7}\)\(1\frac{1}{8}\)=?

Answer 1

\(1\frac{1}{3}\times1\frac{1}{4}\times1\frac{1}{5}\times1\frac{1}{6}\times1\frac{1}{7}\times1\frac{1}{8}\)

\(=\frac{4}{3}\times\frac{5}{4}\times\frac{6}{5}\times\frac{7}{6}\times\frac{8}{7}\times\frac{9}{8}\)

\(=\frac{9}{3}\)

\(=3\)

Answer 2

 = 4/3 x 5/4 x 6/5 x 7/6 x 8/7 x 9/8

 =  4x5x6x7x8x9/3x4x5x6x7x8 = 9/3 = 3

k mk nha