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Tauwehe
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Tohaina

\frac{125}{2}-\frac{10}{2}
Me tahuri te 5 ki te hautau \frac{10}{2}.
\frac{125-10}{2}
Tā te mea he rite te tauraro o \frac{125}{2} me \frac{10}{2}, me tango rāua mā te tango i ō raua taurunga.
\frac{115}{2}
Tangohia te 10 i te 125, ka 115.