Additionner, soustraire, multiplier des fractions

\frac{7}{6} - \frac{3}{4}

\frac{7}{6} = \frac{14}{12}

\frac{3}{4} = \frac{9}{12}

\frac{7}{6} - \frac{3}{4} = \frac{14}{12} - \frac{9}{12} = \frac{5}{12}

\frac{4}{15} \times (2 + \frac{1}{2})

(2 + \frac{1}{2}) = \frac{5}{2}

\frac{4}{15} \times \frac{5}{2} = \frac{4 \times 5}{15 \times 2} = \frac{2}{3}

\frac{3}{4}

\frac{5}{4}

\frac{1}{3}

\frac{13}{16}

\frac{16}{13}

\frac{39}{48}

\frac{11}{13}

\frac{3}{4}

\frac{5}{4}

\frac{1}{3}

\frac{3}{4}

\frac{24}{12}

\frac{15}{12}

\frac{4}{12}

\frac{3}{4}

\frac{13}{12}

\frac{13}{16}