2.
[tex]\frac{3}{8} :\frac{1}{2}[/tex] (avem impartire, deci rasturnam ultima fractie)
[tex]\frac{3}{8}* \frac{2}{1}[/tex] (simplificam 2 cu 8)
[tex]\frac{3}{4} *1\\\\=\frac{3}{4}[/tex]
3.
[tex]2\frac{1}{5} :4\frac{1}{10}[/tex] (introducem intregii)
[tex]\frac{2*5+1}{5} :\frac{4*10+1}{10}[/tex] (ii voi introduce treptat)
[tex]\frac{10+1}{5} :\frac{40+1}{10} \\\\\frac{11}{5} :\frac{41}{10}[/tex] (rasturnam din nou ultima fractie)
[tex]\frac{11}{5}* \frac{10}{41}[/tex] (simplificam 10 cu 5)
[tex]\frac{11}{1} *\frac{2}{41} \\\\=\frac{22}{41}[/tex]
