Автор - lenaced1976

5 * 2 1/5=?
4 2/7 * 2=?
2 2/25 * 1 9/16=?
13/43 * 8 7/26=?
Помогите, пожалуйста!

Ответ

Автор - Marina2612
5*2 frac{1}{5}=5* frac{11}{5}=11

2 frac{2}{25}*1 frac{9}{16}= frac{52}{25}* frac{25}{16}= frac{52}{16}= frac{13}{4}=3 frac{1}{4}

4 frac{2}{7}*2= frac{16}{7}*2= frac{32}{7} =4frac{4}{7}

 frac{13}{43}*8 frac{7}{26}=  frac{13}{43}* frac{208}{26}= frac{104}{43} =2 frac{18}{43}

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