Explicație pas cu pas:
a)
[tex] \frac{1}{3} \: si \: \frac{3}{6} \\ [/tex]
12 = 3×4 = 6×2
[tex] \frac{1}{3} = \frac{1}{3} \times \frac{4}{4} = \frac{4}{12} \\ [/tex]
[tex]\frac{3}{6} = \frac{3}{6} \times \frac{2}{2} = \frac{6}{12} \\ [/tex]
b)
[tex]\frac{1}{2} \: si \: \frac{5}{15} \\ [/tex]
[tex]\frac{1}{2} = \frac{1}{2} \times \frac{6}{6} = \frac{6}{12} \\ [/tex]
[tex]\frac{5}{15} = \frac{1}{3} = \frac{1}{3} \times \frac{4}{4} = \frac{4}{12} \\ [/tex]
c)
[tex]\frac{2}{6} \: si \: \frac{1}{4} \\ [/tex]
[tex]\frac{2}{6} = \frac{2}{6} \times \frac{2}{2} = \frac{4}{12} \\ [/tex]
[tex]\frac{1}{4} = \frac{1}{4} \times \frac{3}{3} = \frac{3}{12}\\ [/tex]
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