Question

3,5*1/14 + (9/10 + 0,2) : 11

Answer 1

Пошаговое объяснение:

$3.5 \times \frac{1}{14} + ( \frac{9}{10} + 0.2) \div 11 = \frac{7}{2}\times \left(\frac{1}{14}\right)+\frac{\frac{9}{10}+0.2}{11} =\frac{7\times 1}{2\times 14}+\frac{\frac{9}{10}+0.2}{11} =\frac{7}{28}+\frac{\frac{9}{10}+0.2}{11} =\frac{1}{4}+\frac{\frac{9}{10}+0.2}{11} =\frac{1}{4}+\frac{\frac{9}{10}+\frac{1}{5}}{11} =\frac{1}{4}+\frac{\frac{9}{10}+\frac{2}{10}}{11} =\frac{1}{4}+\frac{\frac{9+2}{10}}{11} =\frac{1}{4}+\frac{\frac{11}{10}}{11} =\frac{1}{4}+\frac{11}{10\times 11} =\frac{1}{4}+\frac{1}{10} =\frac{5}{20}+\frac{2}{20} =\frac{5+2}{20} =\frac{7}{20} =0.35$