A) \(\frac{5}{16} \cdot \frac{4}{25} = \frac{5 \cdot 4}{16 \cdot 25} = \frac{20}{400} = \frac{1}{20}\)
Б) \(\frac{17}{12} \cdot \frac{15}{48} = \frac{17 \cdot 15}{12 \cdot 48} = \frac{255}{576} = \frac{85}{192}\)
B) \(\frac{9}{17} \cdot \frac{17}{5} \cdot \frac{17}{27} = \frac{9 \cdot 17 \cdot 17}{17 \cdot 5 \cdot 27} = \frac{9 \cdot 17}{5 \cdot 27} = \frac{153}{135} = \frac{17}{15}\)
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