Автор - bamberov

25 и 27 задания, осталось 15 минут

Ответ

Автор - сок111213

25)8.2 div 0.2 - 2.75 div 5.5 - 18.25 = 82 div 2 - 27.5 div 55 - 18.25 = 41 - 0.5 - 18.25 = 41 - 18.75 = 22.25 = frac{89}{4}

13 frac{5}{18}  - (9 frac{13}{36}  + 2 frac{5}{8} ) = 13 frac{5}{18}   - (9 frac{26}{72}   + 2 frac{45}{72} ) = 13 frac{5}{18}  - 11 frac{71}{72}  = 13 frac{20}{72}  - 11 frac{71}{72}  = 12 frac{92}{72}  - 11 frac{71}{72}  = 1 frac{21}{72}  = 1 frac{7}{24}

Ответ: 25) 3 ; 27) 2

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