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Tauwehe
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

\frac{7\times 100}{80}
Whakawehe 7 ki te \frac{80}{100} mā te whakarea 7 ki te tau huripoki o \frac{80}{100}.
\frac{700}{80}
Whakareatia te 7 ki te 100, ka 700.
\frac{35}{4}
Whakahekea te hautanga \frac{700}{80} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 20.