Fractia se simplifica cu n a.i. a si b vor fi prime intre ele.
Asta inseamna ca n este cmmdc dintr numarator si numitor.
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[tex]\displaystyle\bf\\b)\\\\\frac{35^{(n}}{42}=\frac{a}{b}\\\\n=cmmdc(35~si~42)=7\\\\\frac{35^{(7}}{42}=\frac{5}{6}\\\\n=7\\a=5\\b=6[/tex]
