For example, 50 monme 7 bu is mixed metal of gold and silver made by adding cupellated silver (genuine silver) 6 monme 7 bu to genuine gold 44 monme, and its carat is 44/50.70.8679.
たとえば五十匁七分位とは四十四匁の生粋金に六匁七分の灰吹銀（純銀）を加えた金銀合金であり、品位は44÷50.70.8679となる。