cách 1 . \(\frac{5}{24}\times\frac{5}{12}\times24=\frac{5}{24}\times\left(\frac{5}{12}\times24\right)=\frac{5}{24}\times10=\frac{25}{12}\)
cách 2: \(\frac{5}{24}\times\frac{5}{12}\times24=\frac{5}{12}\times\left(\frac{5}{24}\times24\right)=\frac{5}{12}\times5=\frac{25}{12}\)