Приведите дроби к наименьшему знаменателю 914

$1) \frac{1}{2}, \frac{1}{6}$ и $\frac{2}{3}= \frac{3}{6}, \frac{1}{6}, \frac{4}{6};$
$2) \frac{1}{4}, \frac{5}{7}$ и $\frac{9}{28}= \frac{7}{28}, \frac{20}{28}, \frac{9}{28};$
$3) \frac{1}{5}, \frac{11}{20}$ и $\frac{3}{10}= \frac{4}{20}, \frac{11}{20}, \frac{6}{20};$
$4) \frac{3}{4} , \frac{7}{8}$ и $\frac{3}{16}= \frac{12}{16} , \frac{14}{16} , \frac{3}{16};$
$5) \frac{2}{3}, \frac{2}{15}$ и $\frac{4}{5}= \frac{10}{15},\frac{2}{15},\frac{12}{15};$
$6) \frac{1}{2}, \frac{1}{9}$ и $\frac{5}{6}=\frac{9}{18},\frac{2}{18},\frac{15}{18};$