Rational number
Division

If b, c, d are nonzero, the division rule is

Thus, dividing a b {\displaystyle {\tfrac {a}{b}}} by c d {\displaystyle {\tfrac {c}{d}}} is equivalent to multiplying a b {\displaystyle {\tfrac {a}{b}}} by the reciprocal of c d: {\displaystyle {\tfrac {c}{d}}:}
punctuation:no_comma, language:response_language[Portuguese]