\(\frac{3}{2}\times\frac{4}{5}\times\frac{2}{6}\times\frac{15}{4}\)
\(=\frac{6}{5}\times\frac{2}{6}\times\frac{15}{4}\)
\(=\frac{2}{5}\times\frac{15}{4}\)
\(=\frac{3}{2}\)
\(\frac{3x4x2x15}{2x5x6x4}\)
Loại 4 x 2
\(\frac{3x15}{5x6}=\frac{3x3x5}{5x3x2}\)
Loại 3 x 5
=>\(\frac{3}{2}\)
3/2 x 4/5 x 2/6 x 15/4= 3x4x2x15/ 2x5x6x4= 3/2