Tính: \(\frac{1}{2}\times\frac{5}{4} -\frac{3}{4}\times\frac{5}{6}.\)
\(\frac{5}{8}.\)\(\frac{15}{24}.\)\(\frac{10}{56}.\)\(\)0.Hướng dẫn giải:\(\frac{1}{2}\times\frac{5}{4} -\frac{3}{4}\times\frac{5}{6}=\frac{5}{8}-\frac{15}{24}=\frac{15}{24}-\frac{15}{24}=0.\)
