分数乘分数练习题 - 10道例题带答案 - 常规

计算 (\frac{2}{3} \times \frac{5}{6}). (\frac{2}{3} \times \frac{5}{6} = \frac{2 \times 5}{3 \times 6} = \frac{10}{18} = \frac{5}{9}) 2. 计算 (\frac{3}{4} \times \frac{1}{2}). (\frac{3}{4} \times \frac{1}{2} = \frac{3 \times 1}{4 \times 2} = \frac{3}{8}) 3. 计算 (\frac{4}{5} \times \frac{7}{8}). (\frac{4}{5} \times \frac{7}{8} = \frac{4 \times 7}{5 \times 8} = \frac{28}{40} = \frac{7}{10}) 4. 计算 (\frac{1}{2} \times \frac{3}{5}). (\frac{1}{2} \times \frac{3}{5} = \frac{1 \times 3}{2 \times 5} = \frac{3}{10}) 5. 计算 (\frac{2}{7} \times \frac{4}{9}). (\frac{2}{7} \times \frac{4}{9} = \frac{2 \times 4}{7 \times 9} = \frac{8}{63}) 6. 计算 (\frac{5}{6} \times \frac{2}{3}). (\frac{5}{6} \times \frac{2}{3} = \frac{5 \times 2}{6 \times 3} = \frac{10}{18} = \frac{5}{9}) 7. 计算 (\frac{3}{8} \times \frac{9}{10}). (\frac{3}{8} \times \frac{9}{10} = \frac{3 \times 9}{8 \times 10} = \frac{27}{80}) 8. 计算 (\frac{2}{9} \times \frac{7}{10}). (\frac{2}{9} \times \frac{7}{10} = \frac{2 \times 7}{9 \times 10} = \frac{14}{90} = \frac{7}{45}) 9. 计算 (\frac{4}{5} \times \frac{3}{4}). (\frac{4}{5} \times \frac{3}{4} = \frac{4 \times 3}{5 \times 4} = \frac{12}{20} = \frac{3}{5}) 10. 计算 (\frac{1}{3} \times \frac{5}{6}). (\frac{1}{3} \times \frac{5}{6} = \frac{1 \times 5}{3 \times 6} = \frac{5}{18})