Tīpoka ki ngā ihirangi matua
Whakaoti mō x
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Tohaina

x\times \frac{3}{5}=35
Whakahekea te hautanga \frac{60}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 20.
x=35\times \frac{5}{3}
Me whakarea ngā taha e rua ki te \frac{5}{3}, te tau utu o \frac{3}{5}.
x=\frac{35\times 5}{3}
Tuhia te 35\times \frac{5}{3} hei hautanga kotahi.
x=\frac{175}{3}
Whakareatia te 35 ki te 5, ka 175.