Автор - redrered

658 номер токо сделайте пожалуйста правильно НАГРАДА 15 б

Ответ

Автор - maymr
1)
 frac{5}{10}  times  frac{11}{3}  + 17 frac{2}{10}  =  \ \   =  frac{55}{30}  + 17 frac{6}{30}  =  \  \  = 17 frac{61}{30}  = 19 frac{1}{30}

2)
 frac{97}{9}  -  frac{25}{10}  times  frac{7}{6}  =  frac{97}{9}  -  frac{175}{60}  =  \  \  =  frac{1940}{180}  -  frac{525}{180}  =  frac{1415}{180}  =  frac{283}{36}    = \  \  = 7 frac{31}{36}

3)
 frac{17}{2}  div  frac{17}{3}  + 19 frac{7}{10}  =  \  \  =  frac{17}{2}  times  frac{3}{17}  + 19 frac{7}{10}  =  \  \  =  frac{3}{2}  + 19 frac{7}{10}  =  frac{30}{20}  + 19 frac{14}{20}  =  \  \  = 19 frac{44}{20}  = 21 frac{1}{5}  = 21.2

4)
 frac{29}{4}  times  frac{35}{58}  div  frac{35}{6}  =  frac{29}{4}  times  frac{35}{58}  times  frac{6}{35}  =  \  \  =  frac{3}{4}  = 0.75

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