Exercice 33
A = [tex]\frac{7}{3}[/tex] - [tex]\frac{4}{3}[/tex] ÷ [tex]\frac{8}{5}[/tex]
A = [tex]\frac{7}{3}[/tex] - [tex]\frac{4}{3}[/tex] x [tex]\frac{5}{8}[/tex]
A = [tex]\frac{7}{3}[/tex] - [tex]\frac{5}{6}[/tex]
A = [tex]\frac{7X2}{3X2}[/tex] - [tex]\frac{5}{6}[/tex]
A = [tex]\frac{14}{6}[/tex] - [tex]\frac{5}{6}[/tex]
A = [tex]\frac{9}{6}[/tex]
A = [tex]\frac{3}{2}[/tex]
B = [tex]\frac{-4}{9}[/tex] x [tex]\frac{1}{5}[/tex] ÷ [tex]\frac{3}{7}[/tex]
B = [tex]\frac{-4}{45}[/tex] ÷ [tex]\frac{3}{7}[/tex]
B = [tex]\frac{-4}{45}[/tex] x [tex]\frac{7}{3}[/tex]
B = [tex]\frac{-28}{135}[/tex]
C = [tex]- \frac{8}{3}[/tex] ÷ [tex]\frac{-5}{6}[/tex] + [tex]\frac{7}{4}[/tex]
C = [tex]- \frac{8}{3}[/tex] x [tex]\frac{6}{-5}[/tex] + [tex]\frac{7}{4}[/tex]
C = [tex]\frac{16}{5}[/tex] + [tex]\frac{7}{4}[/tex]
C = [tex]\frac{16X4}{5X4}[/tex] + [tex]\frac{7X5}{4X5}[/tex]
C = [tex]\frac{64}{20}[/tex] + [tex]\frac{35}{20}[/tex]
C = [tex]\frac{99}{20}[/tex]
Exercice 34
L = [tex]\frac{-7}{5}[/tex] ÷ [tex](\frac{2}{9} - \frac{7}{18} )[/tex]
L = [tex]\frac{-7}{5}[/tex] ÷ [tex](\frac{2X2}{9X2} - \frac{7}{18} )[/tex]
L = [tex]\frac{-7}{5}[/tex] ÷ [tex](\frac{4}{18} - \frac{7}{18} )[/tex]
L = [tex]\frac{-7}{5}[/tex] ÷ [tex]\frac{-3}{18}[/tex]
L = [tex]\frac{-7}{5}[/tex] x [tex]\frac{18}{-3}[/tex]
L = 8,4
M = [tex](\frac{4}{5} + \frac{-3}{2} ) : (\frac{-9}{4} - \frac{1}{6} )[/tex]
M = [tex](\frac{4X2}{5X2} + \frac{-3X5}{2X5} ) : (\frac{-9X6}{4X6} - \frac{1X4}{6X4} )[/tex]
M = [tex](\frac{8}{10} + \frac{-15}{10} ) : (\frac{-54}{24} - \frac{4}{24} )[/tex]
M = [tex]\frac{-7}{10}[/tex] x [tex]\frac{24}{-58}[/tex]
M = [tex]\frac{-168}{-580}[/tex]
M = [tex]\frac{168}{580}[/tex]
M = [tex]\frac{42}{145}[/tex]
