Whakaoti mō k
k=\frac{9}{160}=0.05625
Tohaina
Kua tāruatia ki te papatopenga
90=k\times 1600
Tātaihia te 40 mā te pū o 2, kia riro ko 1600.
k\times 1600=90
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
k=\frac{90}{1600}
Whakawehea ngā taha e rua ki te 1600.
k=\frac{9}{160}
Whakahekea te hautanga \frac{90}{1600} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 10.
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