2. 1) (6\(\frac{7}{12}\) - 3\(\frac{17}{36}\)) \(\cdot\) 2,5 - 4\(\frac{1}{3}\) : 0,65 2) [(9\(\frac{1}{5}\) - 3,68) : 2\(\frac{1}{2}\)] \(\cdot\) [1 : (2,1 – 2,09)] 3) 2,88 \(\cdot\) \(\frac{35}{72}\) + (1,0625 - \(\frac{5}{12}\)) \(\cdot\) 16 4) (1\(\frac{11}{24}\) + \(\frac{13}{36}\)) \(\cdot\) 1,44 - \(\frac{8}{15}\) \(\cdot\) 0,5625

Question

Вопрос:

2. 1) (6\(\frac{7}{12}\) - 3\(\frac{17}{36}\)) \(\cdot\) 2,5 - 4\(\frac{1}{3}\) : 0,65 2) [(9\(\frac{1}{5}\) - 3,68) : 2\(\frac{1}{2}\)] \(\cdot\) [1 : (2,1 – 2,09)] 3) 2,88 \(\cdot\) \(\frac{35}{72}\) + (1,0625 - \(\frac{5}{12}\)) \(\cdot\) 16 4) (1\(\frac{11}{24}\) + \(\frac{13}{36}\)) \(\cdot\) 1,44 - \(\frac{8}{15}\) \(\cdot\) 0,5625

Ответ:

ФИО:Телефон:Емаил:Полное описание сути нарушения прав (почему распространение данной информации запрещено Правообладателем):

Accepted Answer

Ответ: 0,33\(\frac{1}{3}\)

Краткое пояснение: Сначала выполняем действия в скобках, затем умножение и деление, и в конце - сложение и вычитание.

1) 6\(\frac{7}{12}\) - 3\(\frac{17}{36}\) = \(\frac{79}{12}\) - \(\frac{125}{36}\) = \(\frac{237 - 125}{36}\) = \(\frac{112}{36}\) = \(\frac{28}{9}\)

2) \(\frac{28}{9}\) \(\cdot\) 2,5 = \(\frac{28}{9}\) \(\cdot\) \(\frac{5}{2}\) = \(\frac{140}{18}\) = \(\frac{70}{9}\)

3) 4\(\frac{1}{3}\) : 0,65 = \(\frac{13}{3}\) : \(\frac{65}{100}\) = \(\frac{13}{3}\) : \(\frac{13}{20}\) = \(\frac{13}{3}\) \(\cdot\) \(\frac{20}{13}\) = \(\frac{20}{3}\)

4) \(\frac{70}{9}\) - \(\frac{20}{3}\) = \(\frac{70 - 60}{9}\) = \(\frac{10}{9}\) = 1\(\frac{1}{9}\)

Ответ: 1\(\frac{1}{9}\)