Salut
[tex]\green{\rule{6cm}{1mm}}[/tex]
Calcule en détaillant les étapes.
[tex]\rule{6cm}{1mm}[/tex]
[tex]\boxed{i. \: \frac{9}{7}+\frac{-8}{7}}[/tex]
[tex]\boxed{\frac{9+(-8)}{7}}[/tex]
[tex]\boxed{\boxed{\blue{\frac{1}{7}}}}[/tex]
[tex]\rule{6cm}{1mm}[/tex]
[tex]\boxed{j. \: \frac{5,2}{41}+\frac{8,56}{41}}[/tex]
[tex]\boxed{\frac{5,2+8,56}{41}}[/tex]
[tex]\boxed{\boxed{\blue{\frac{13,76}{41}}}}[/tex]
[tex]\rule{6cm}{1mm}[/tex]
[tex]\boxed{k. \: \frac{-5}{3}+\frac{-6}{3}}[/tex]
[tex]\boxed{\frac{-5+(-6)}{3}}[/tex]
[tex]\boxed{\boxed{\blue{\frac{-11}{3}}}}[/tex]
[tex]\rule{6cm}{1mm}[/tex]
[tex]\boxed{l. \: \frac{56}{57}-\frac{58}{57}}[/tex]
[tex]\boxed{\frac{56-58}{57}}[/tex]
[tex]\boxed{\boxed{\blue{\frac{-2}{57}}}}[/tex]
[tex]\rule{6cm}{1mm}[/tex]
[tex]\boxed{m. \: \frac{-1}{3}-\frac{2}{3}}[/tex]
[tex]\boxed{\frac{-1-2}{3}}[/tex]
[tex]\boxed{\boxed{\blue{\frac{-3}{3}}}}[/tex]
[tex]\rule{6cm}{1mm}[/tex]
[tex]\boxed{n. \: \frac{-5}{14}-\frac{-2}{14}}[/tex]
[tex]\boxed{\frac{-5-(-2)}{7}}[/tex]
[tex]\boxed{\boxed{\blue{\frac{-3}{14}}}}[/tex]
[tex]\rule{6cm}{1mm}[/tex]
[tex]\boxed{o. \: \frac{1}{8}-\frac{9}{8}}[/tex]
[tex]\boxed{\frac{1-9}{8}}[/tex]
[tex]\boxed{\boxed{\blue{\frac{-8}{8}}}}[/tex]
[tex]\rule{6cm}{1mm}[/tex]
[tex]\boxed{p. \: -\frac{1}{25}-\frac{-11}{25}+\frac{-8}{25}}[/tex]
[tex]\boxed{\frac{-1-(11)+(-8)}{25}}[/tex]
[tex]\boxed{\boxed{\blue{\frac{2}{25}}}}[/tex]
[tex]\green{\rule{6cm}{1mm}}[/tex]
