Whakaoti i te 100(100-40)/403

$$100 \frac{ (100-40) }{ 40 } 3$$

Aromātai

$$450$$

Ngā Upane Otinga

Tangohia te 40 i te 100, ka 60.

$$100\times \frac{60}{40}\times 3$$

Whakahekea te hautanga \frac{60}{40} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 20.

$$100\times \frac{3}{2}\times 3$$

Tuhia te 100\times \frac{3}{2} hei hautanga kotahi.

$$\frac{100\times 3}{2}\times 3$$

Whakareatia te 100 ki te 3, ka 300.

$$\frac{300}{2}\times 3$$

Whakawehea te 300 ki te 2, kia riro ko 150.

$$150\times 3$$

Whakareatia te 150 ki te 3, ka 450.

$$450$$

Tauwehe

$$2\times 3^{2}\times 5^{2}$$