[tex]\frac{1}{2} +\frac{1}{7} -\frac{1}{14} =\frac{7+2-1}{14} =\frac{8}{14} =\frac{4}{7}[/tex]
[tex] \frac{1}{2} + \frac{1}{7} - \frac{1}{14} = [/tex]
amplifici cu 7 prima fractie, a doua cu 2, iar ultima o lasam asa
[tex] \frac{7}{14} + \frac{2}{14} - \frac{1}{14} = \frac{8}{14} [/tex]
simplificam cu 2 =>
[tex] \frac{4}{7} [/tex]
sper ca te-am ajutat!!
