以下是100道分数乘法算式，涵盖分数乘整数、分数乘分数、分数乘小数等多种题型，并附上答案解析：
一、分数乘整数（25道）
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$\frac{2}{1} \times 8 = 16$
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$\frac{5}{8} \times 4 = \frac{5}{2}$
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$\frac{6}{5} \times 5 = 6$
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$\frac{8}{7} \times 7 = 8$
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$\frac{6}{5} \times 10 = 12$
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$\frac{1}{2} \times 6 = 3$
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$\frac{3}{4} \times 8 = 6$
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$\frac{5}{6} \times 9 = \frac{15}{2}$
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$\frac{7}{8} \times 4 = \frac{7}{2}$
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$\frac{2}{3} \times 9 = 6$
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$\frac{4}{5} \times 5 = 4$
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$\frac{1}{4} \times 16 = 4$
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$\frac{3}{5} \times 10 = 6$
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$\frac{2}{7} \times 7 = 2$
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$\frac{5}{9} \times 9 = 5$
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$\frac{1}{3} \times 18 = 6$
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$\frac{4}{7} \times 7 = 4$
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$\frac{2}{9} \times 9 = 2$
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$\frac{3}{8} \times 8 = 3$
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$\frac{5}{12} \times 12 = 5$
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$\frac{1}{6} \times 6 = 1$
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$\frac{7}{10} \times 10 = 7$
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$\frac{2}{11} \times 11 = 2$
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$\frac{3}{10} \times 10 = 3$
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$\frac{4}{11} \times 11 = 4$
二、分数乘分数（25道）
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$\frac{1}{2} \times \frac{6}{5} = \frac{3}{5}$
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$\frac{1}{7} \times \frac{7}{5} = \frac{1}{5}$
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$\frac{1}{7} \times \frac{1}{8} = \frac{1}{56}$
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$\frac{8}{9} \times \frac{2}{7} = \frac{16}{63}$
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$\frac{1}{22} \times \frac{22}{4} = \frac{1}{4}$
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$\frac{3}{4} \times \frac{5}{6} = \frac{5}{8}$
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$\frac{2}{5} \times \frac{3}{7} = \frac{6}{35}$
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$\frac{7}{8} \times \frac{2}{9} = \frac{7}{36}$
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$\frac{1}{6} \times \frac{3}{4} = \frac{1}{8}$
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$\frac{5}{9} \times \frac{7}{8} = \frac{35}{72}$
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$\frac{2}{11} \times \frac{11}{12} = \frac{1}{6}$
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$\frac{3}{10} \times \frac{5}{7} = \frac{3}{14}$
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$\frac{4}{11} \times \frac{11}{16} = \frac{1}{4}$
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$\frac{1}{5} \times \frac{6}{7} = \frac{6}{35}$
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$\frac{2}{9} \times \frac{3}{4} = \frac{1}{6}$
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$\frac{3}{8} \times \frac{5}{9} = \frac{5}{24}$
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$\frac{5}{12} \times \frac{11}{14} = \frac{55}{168}$
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