Răspuns :
anul are 12 luni
1 luna= [tex] \frac{1}{12} [/tex]
6 luni [tex] \frac{6}{12} = \frac{1}{6} [/tex]
12 luni = [tex] \frac{12}{12} =1[/tex]
1 luna= [tex] \frac{1}{12} [/tex]
6 luni [tex] \frac{6}{12} = \frac{1}{6} [/tex]
12 luni = [tex] \frac{12}{12} =1[/tex]