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Whakaoti mō x_n
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Tohaina

\frac{17.1}{57}=x_{n}
Whakawehea ngā taha e rua ki te 57.
\frac{171}{570}=x_{n}
Whakarohaina te \frac{17.1}{57} mā te whakarea i te taurunga me te tauraro ki te 10.
\frac{3}{10}=x_{n}
Whakahekea te hautanga \frac{171}{570} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 57.
x_{n}=\frac{3}{10}
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.