punctul b)
de la intrebarea precedenta

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.
.
[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]