Помогите пожалуйста,не успеваю сделать,ниже прикрепил задания,N472 (к-п),N477,N382

1)
$5*2\frac{1}{5}=5*\frac{11}{5}=11\\\\3\frac{3}{5}*1\frac{1}{9}=\frac{18}{5}*\frac{10}{9}=4\\\\4\frac{2}{7}*2=\frac{30}{7}*2=\frac{60}{7}\\\\2\frac{14}{15}*6\frac{6}{11}=\frac{44}{15}*\frac{72}{11}=\frac{4*24}{5}=\frac{96}{5}\\\\2\frac{2}{25}*1\frac{9}{16}=\frac{52}{25}*\frac{25}{16}=\frac{13}{4}\\\\\frac{13}{43}*8\frac{7}{26}=\frac{13}{43}*\frac{215}{26}=\frac{5}{2}$

2)
$27\frac{5}{6}*3=\frac{167}{6}*3=83,5\\\\27\frac{5}{6}*1\frac{1}{4}=\frac{167}{6}*\frac{5}{4}=\frac{835}{24}=34\frac{19}{24}\\\\27\frac{5}{6}*\frac{2}{3}=\frac{167}{6}*\frac{2}{3}=\frac{167}{9}=18\frac{5}{9}$

3)
$9,5x-(3,2x+1,8x)+3,75=6,9\\4,5x=3,15\\x=0,7\\\\11,3y-(9,7y-0,8y)+7,4=17\\2,4y=9,6\\y=4$