A- 4/14 + 3 1/2 - 2/20 * 1/3 = B- 6/5 * 10 + 15/10 + 2 1/3= C- 109 - 4 * (2/3 + 1 ) + 1 1/3 = ME AYU.... Question from @barbylan07

a) [tex]-\frac{4}{14}+3\frac{1}{2}-\frac{2}{20}\cdot \frac{1}{3}[/tex]

[tex]3\frac{1}{2}=\frac{7}{2}[/tex]

[tex]=-\frac{4}{14}+\frac{7}{2}-\frac{2}{20}\cdot \frac{1}{3}[/tex]

[tex]-\frac{2}{20}\cdot \frac{1}{3}=-\frac{1}{30}[/tex]

[tex]=-\frac{4}{14}+\frac{7}{2}-\frac{1}{30}[/tex]

[tex]-\frac{4}{14}:\frac{2}{7}[/tex]

[tex]=-\frac{2}{7}+\frac{7}{2}-\frac{1}{30}[/tex]

[tex]=-\frac{60}{210}+\frac{735}{210}-\frac{7}{210}[/tex]

[tex]=\frac{-60+735-7}{210}[/tex]

[tex]-60+735-7=668[/tex]

[tex]=\frac{668}{210}[/tex]

[tex]\frac{668}{210}:\frac{334}{105}[/tex]

[tex]\frac{334}{105}=3\frac{19}{105}[/tex]

[tex]=3\frac{19}{105}[/tex]

b)[tex]-\frac{6}{5}\cdot \:10+\frac{15}{10}+2\frac{1}{3}[/tex]

[tex]2\frac{1}{3}=\frac{7}{3}[/tex]

[tex]=-\frac{6}{5}\cdot \:10+\frac{15}{10}+\frac{7}{3}[/tex]

[tex]\frac{15}{10}=\frac{3}{2}[/tex]

[tex]=-\frac{6}{5}\cdot \:10+\frac{3}{2}+\frac{7}{3}[/tex]

[tex]-\frac{6}{5}\cdot \:10:-12[/tex]

[tex]=-12+\frac{3}{2}+\frac{7}{3}[/tex]

[tex]=-\frac{49}{6}[/tex]

c)[tex]-109-4\cdot \left(\frac{2}{3}+1\right)+1\frac{1}{3}[/tex]

[tex]1\frac{1}{3}=\frac{4}{3}[/tex]

[tex]=-109-4\cdot \left(\frac{2}{3}+1\right)+\frac{4}{3}[/tex]

[tex]\left(\frac{2}{3}+1\right):\frac{5}{3}[/tex]

[tex]=-109-4\cdot \frac{5}{3}+\frac{4}{3}[/tex]

[tex]4\cdot \frac{5}{3}:\frac{20}{3}[/tex]

[tex]=-109-\frac{20}{3}+\frac{4}{3}[/tex]

[tex]=-\frac{343}{3}[/tex]

[tex]Buena\:suerte\:con\:tus\:tareas\::ProfeAndresFelipe :)[/tex]