Mediant (mathematics)
In mathematics, the mediant of two fractions, generally made up of four positive integers a c {\displaystyle {\frac {a}{c}}\quad } and b d {\displaystyle \quad {\frac {b}{d}}\quad } is defined as a + b c + d . {\displaystyle \quad {\frac {a+b}{c+d}}.} That is to say, the numerator and denominator of the mediant are the sums of the numerators and denominators of the given fractions, respectively.