Автор - rahima90

найди значения выражения 2 3/10*2 1/2+1/2​

Ответ

Автор - barashekshon20006

Ответ:

2 frac{3}{10} times 2 frac{1}{2}  +  frac{1}{2}

 frac{23 times 5}{10 times 2}  =  frac{115}{20}  = 5 frac{15}{20}

5 frac{ 15}{20}  +  frac{1}{2}  = 5 frac{ 15}{20}  +  frac{10}{20} = 6 frac{5}{20} = 6 frac{1}{4}

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