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Tohaina

15m=21+45
Me tāpiri te 45 ki ngā taha e rua.
15m=66
Tāpirihia te 21 ki te 45, ka 66.
m=\frac{66}{15}
Whakawehea ngā taha e rua ki te 15.
m=\frac{22}{5}
Whakahekea te hautanga \frac{66}{15} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.