Question

25 и 27 задания, осталось 15 минут

Answer 1

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

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

Ответ: 25) 3 ; 27) 2