Question

Помогите, пожалуйста, решить. Даю 15 баллов!
$4 \frac{2}{3} +6 \frac{7}{8}:( 5\frac{11}{12} - 3\frac{5}{6})*1\frac{2}{3}$

Answer 1

$5 \frac{11}{12} -3 \frac{5}{6} =5 + \frac{11}{12} -3- \frac{5}{6} =2+( \frac{11}{12}- \frac{5}{6})=2+ \frac{11-10}{12} =2 \frac{1}{12} \\\\6 \frac{7}{8} :2 \frac{1}{12}*1 \frac{2}{3}= \frac{55}{8}* \frac{12}{25}* \frac{5}{3}= \frac{55}{10} =5 \frac{1}{2}\\\\4 \frac{2}{3}+5 \frac{1}{2}=4+ \frac{2}{3} +5+ \frac{1}{2}=9+ \frac{4+3}{6}=9+ \frac{7}{6}=9+1 \frac{1}{6} =10 \frac{1}{6}$