5), fractions (3/4), mixed (2 1/3), common Unicode (½ ¼ ¾).+, −, ×, ÷. Division by a zero numerator on the right is invalid.n/d to lowest terms. Denominator is always positive.sign · (whole rem/den). If remainder is 0, it’s an integer.a/b ± c/d = (ad ± cb) / bd.a/b × c/d = (ac)/(bd). Divide: multiply by reciprocal: a/b ÷ c/d = (a·d)/(b·c).gcd(n,d).n/d = (sign)·(⌊|n|/d⌋) + (|n| mod d)/d.Choose which optional categories you allow. Necessary cookies are always on. Privacy Policy.