Numitorul comun a doua sau mai multe fractii este cmmmc al numitorilor.
Descompunem numitorii:
[tex]\displaystyle \bf\\
16 = 2^4\\
24 = 2^3\times 3\\
cmmmc = 2^4 \times 3 = 16 \times 3 = \boxed{48}\\\\
\text{Acum aducem fractiile la acelasi numitor}\\
\text{amplificand fiecare fractie a.i. numitoru sa fie 48.}\\\\
\frac{^{3)}9}{16} ~~si~~ \frac{^{2)}1}{24} \\\\\\
\frac{3\times 9}{3\times16} ~~si~~ \frac{2\times 1}{2\times 24} \\\\\\
\boxed{\bf \frac{27}{48} ~~si~~ \frac{2}{48}}[/tex]
