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Tohaina

\frac{2}{5}\times 410
Whakahekea te hautanga \frac{40}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 20.
\frac{2\times 410}{5}
Tuhia te \frac{2}{5}\times 410 hei hautanga kotahi.
\frac{820}{5}
Whakareatia te 2 ki te 410, ka 820.
164
Whakawehea te 820 ki te 5, kia riro ko 164.