Salut,
Exercice 3:
[tex] \frac{2}{9} + \frac{1}{3} = \frac{2}{9} + \frac{3}{9} = \frac{5}{9} \\
1 - \frac{5}{9} = \frac{4}{9} [/tex]
a) 5/9
b) 4/9
Exercice 4:
[tex] \frac{1}{2} + \frac{1}{6} = \frac{3}{6} + \frac{1}{6} = \frac{4}{6} = \frac{2}{3} \\[/tex]
[tex]1 - \frac{2}{3} = \frac{1}{3} [/tex]
Il a passé 1/3 de sa journée à jouer
Exercice 5:
[tex]1- \frac{2}{5} - \frac{3}{10} = \frac{10}{10} - \frac{4}{10} - \frac{3}{10} = \frac{3}{10} \\
\frac{3}{10} * 50 = \frac{150}{10}= 15 [/tex]
a) 3/10
b) 15
Bonne soirée!
