(3 2/3 + 2 1/7 *2,1) : (4,2 - 3 37/60)

1)2 1/7*2 1/10=15/7*21/10=9/2 2)3 2/3+9/2=11/3+9/2=22/6+27/6=49/6 3)4 2/10-3 37/160=4 12/60-3 37/60=3 72/60-3 37/60=35/60=7/12 4)49/6:7/12=49/6*12/7=14

[latex](3 \frac{2}{3} +2 \frac{1}{7}*2,1):(4,2-3 \frac{37}{60} ) =14 \\ \\ 1)2 \frac{1}{7}*2,1= \frac{15}{7}* \frac{21}{10} = \frac{9}{2} \\ \\ 2) 3 \frac{2}{3}+\frac{9}{2} = \frac{11}{3}+ \frac{9}{2}= \frac{22+27}{6}= \frac{49}{6} \\ \\ 3)4,2-3 \frac{37}{60}= \frac{42}{10} -\frac{217}{60}= \frac{252-217}{60}= \frac{35}{60} = \frac{7}{12} \\ \\ 4)\frac{49}{6} : \frac{7}{12}=\frac{49}{6} *\frac{12}{7}=7*2 =14[/latex]