Whakaoti mō d
d = \frac{45}{2} = 22\frac{1}{2} = 22.5
Tautapa d
d≔\frac{45}{2}
Tohaina
Kua tāruatia ki te papatopenga
d=\frac{9}{160}\times 400
Tātaihia te 20 mā te pū o 2, kia riro ko 400.
d=\frac{9\times 400}{160}
Tuhia te \frac{9}{160}\times 400 hei hautanga kotahi.
d=\frac{3600}{160}
Whakareatia te 9 ki te 400, ka 3600.
d=\frac{45}{2}
Whakahekea te hautanga \frac{3600}{160} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 80.
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