Premier exercice
P = [tex]\frac{11}{7} + \frac{7}{49} + \frac{6}{21}[/tex]
P = [tex]\frac{77}{49} + \frac{7}{49} + \frac{6}{21}[/tex]
P = [tex]\frac{84}{49} + \frac{6}{21}[/tex]
P = [tex]\frac{12}{7} + \frac{6}{21}[/tex]
P = [tex]\frac{36}{21} + \frac{6}{21}[/tex]
P = [tex]\frac{42}{21} = 2[/tex]
Second exercice
Q = [tex]\frac{8}{5} - (\frac{1}{10} + \frac{2}{10})[/tex]
Q = [tex]\frac{8}{5} - (\frac{3}{10})[/tex]
Q = [tex]\frac{16}{10} - \frac{3}{10}[/tex]
Q = [tex]\frac{13}{10}[/tex]
