Question

Кому не сложно хотяб несколько примеров

Answer 1

Пошаговое объяснение:

$6-3\frac{7}{11}=\frac{6}{1} -\frac{40}{11} =\frac{66}{11} -\frac{40}{11} =\frac{26}{11}=2\frac{4}{11}$

$\frac{2}{5} +\frac{4}{15} =\frac{6}{15} +\frac{4}{15} =\frac{10}{15} =\frac{2}{3}$

$\frac{2}{3} -\frac{5}{9} =\frac{6}{9} -\frac{5}{9} =\frac{1}{9}$

$10\frac{11}{24} -8\frac{19}{36} =\frac{251}{24} -\frac{307}{36} =\frac{753}{72} -\frac{614}{72} =\frac{139}{72} =1\frac{67}{72}$

$\frac{34}{86} *\frac{43}{81} =\frac{34}{162} =\frac{17}{81}$

$\frac{7}{9} *1\frac{1}{14} =\frac{7}{9} *\frac{15}{14} =\frac{5}{6} \\\frac{5}{6} *5\frac{2}{5} =\frac{5}{6} *\frac{27}{5} =\frac{9}{2} =4.5$