\(\dfrac{13}{45}\times\dfrac{15}{34}\times\dfrac{51}{91}\)
\(=\dfrac{13\times15\times51}{45\times34\times91}\)
\(=\dfrac{13\times15\times3\times17}{15\times3\times2\times17\times13\times7}\)
\(=\dfrac{1}{2\times7}\)
\(=\dfrac{1}{14}\)
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