Răspuns :
[tex] \frac{3}{12} \times \frac{3}{21} \times \frac{3}{7} \\ = \frac{1 \times 1 \times 3}{4 \times 7 \times 7} = \frac{3}{28 \times 7} = \frac{3}{196} [/tex]
Răspuns
[tex] \frac{3}{12} \times \frac{3}{21} \times \frac{3}{7} [/tex]
[tex] \frac{1}{4} \times \frac{1}{7} \times \frac{3}{7} [/tex]
[tex] \frac{3}{196} [/tex]
Sper că te-am ajutat:)