private Fraction1 reduce() {
Fraction1 result = new Fraction1();
int common = 0;
int numer = Math.abs(num);
int denomin = Math.abs(denom);
if (numer > denomin) common = gcd(numer, denomin);
else if (num < denomin) common = gcd(denomin, numer);
else common = numer;
result.num = num / common;
result.denom = denom / common;
return result;
}
