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4T1D. Fractions (partie 2)
$\Large{\frac{2}{5} × \frac{3}{7} = ...}$
$\Large{\frac{6}{35}}$
$\Large{\frac{35}{6}}$
$\Large{\frac{5}{12}}$
$\Large{\frac{6}{30}}$
$\Large{\frac{1}{4} × \frac{25}{3} =}$
$\Large{\frac{25}{12}}$
$\Large{\frac{12}{25}}$
$\Large{\frac{100}{3}}$
$\Large{\frac{26}{7}}$
$\Large{7 × \frac{6}{5} =}$
$\Large{\frac{42}{5}}$
$\Large{\frac{5}{42}}$
$\Large{\frac{42}{35}}$
$\Large{\frac{6}{35}}$
$\Large{\frac{2}{3} × \frac{7}{5} =}$
$\Large{\frac{14}{15}}$
$\Large{\frac{15}{14}}$
$\Large{\frac{6}{35}}$
$\Large{\frac{35}{6}}$
$\Large{\frac{4}{7} × \frac{9}{11} =}$
$\Large{\frac{36}{77}}$
$\Large{\frac{77}{36}}$
$\Large{\frac{28}{99}}$
$\Large{\frac{99}{28}}$
L’inverse de
$\normalsize{5}$
est …
$\Large{\frac{1}{5}}$
$\Large{\frac{5}{1}}$
$\normalsize{5}$
$\normalsize{0,5}$
$\normalsize{-5}$
L’inverse de
$\Large{\frac{2}{7}}$
est …
$\Large{\frac{7}{2}}$
$\Large{\frac{2}{7}}$
$\Large{\frac{1}{14}}$
$\normalsize{2,7}$
$\Large{\frac{14}{14}}$
L’inverse de
$\Large{\frac{1}{9}}$
est …
$\normalsize{9}$
$\Large{\frac{1}{9}}$
$\Large{\frac{9}{9}}$
$\normalsize{1,9}$
$\normalsize{0,9}$
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