Question

Помогите пожалуйста решить пример (12-5 3/4)×4/5, 11 5/8+7 1/6, 2 2/3÷1 7/9,4 1/5-2 3/4

Answer 1

Ответ:

$(12 - 5 \frac{3}{4}) \times \frac{4}{5} = \frac{25}{4} =5$

$11 \frac{5}{8} + 7 \frac{1}{6} = 18 \frac{19}{24} = \frac{451}{24}$

$2 \frac{2}{3} \div 1 \frac{7}{9} = 2 \frac{2}{27} = \frac{56}{27}$

$4 \frac{1}{5} - 2 \frac{3}{4} = 1 \frac{9}{20} = \frac{29}{20} = 1.45$