Упражнение 337. Найдите произведение: 1) 3 2/7 · 5/22; 2) 6 3/8 · 16/17; 3) 2 1/3 · 1 1/5; 4) 19 1/2 · 1 5/9; 5) 2 1/4 · 2 2/27; 6) 2 8/11 · 5 2/15; 7) 7/9 · 1 1/14 · 5 2/5; 8) 2 2/3 · 1 1/24 · 5 2/5.

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Accepted Answer

\(3\frac27\cdot\frac5{22}=\frac{23}{7}\cdot\frac5{22}=\frac{115}{154}=\frac56\).
\(6\frac38\cdot\frac{16}{17}=\frac{51}{8}\cdot\frac{16}{17}=6\).
\(2\frac13\cdot1\frac15=\frac73\cdot\frac65=\frac{14}{5}=2\frac45\).
\(19\frac12\cdot1\frac59=\frac{39}{2}\cdot\frac{14}{9}=\frac{91}{3}=30\frac13\).
\(2\frac14\cdot2\frac2{27}=\frac94\cdot\frac{56}{27}=\frac{14}{3}=4\frac23\).
\(2\frac8{11}\cdot5\frac2{15}=\frac{30}{11}\cdot\frac{77}{15}=14\).
\(\frac79\cdot1\frac1{14}\cdot5\frac25=\frac79\cdot\frac{15}{14}\cdot\frac{27}{5}=9\).
\(2\frac23\cdot1\frac1{24}\cdot5\frac25=\frac83\cdot\frac{25}{24}\cdot\frac{27}{5}=15\).

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