a = [tex](\frac{1}{3} + \frac{1}{5} ) :\frac{1}{2}[/tex]
a = [tex](\frac{5}{15} + \frac{3}{15} ) :\frac{1}{2}[/tex]
a = [tex]\frac{8}{15} :\frac{1}{2} = \frac{8}{15} *\frac{2}{1}[/tex]
a = [tex]\frac{16}{15}[/tex]
b = [tex](\frac{1}{3} - \frac{1}{5})*\frac{1}{2}[/tex]
b = [tex](\frac{5}{15} - \frac{3}{15})*\frac{1}{2}[/tex]
b = [tex]\frac{2}{15}*\frac{1}{2}[/tex]
b = [tex]\frac{1}{15}[/tex]
a = 16 * b
Deci a este de 16 ori mai mare decat b
