Whakaoti i te 121/2(9/10+180)

$$12 \frac { 1 } { 2 } ( \frac { 9 } { 10 } + 180 )$$

Aromātai

$$\frac{9045}{4}=2261.25$$

Ngā Upane Otinga

Whakareatia te 12 ki te 2, ka 24.

$$\frac{24+1}{2}\left(\frac{9}{10}+180\right)$$

Tāpirihia te 24 ki te 1, ka 25.

$$\frac{25}{2}\left(\frac{9}{10}+180\right)$$

Me tahuri te 180 ki te hautau \frac{1800}{10}.

$$\frac{25}{2}\left(\frac{9}{10}+\frac{1800}{10}\right)$$

Tā te mea he rite te tauraro o \frac{9}{10} me \frac{1800}{10}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{25}{2}\times \frac{9+1800}{10}$$

Tāpirihia te 9 ki te 1800, ka 1809.

$$\frac{25}{2}\times \frac{1809}{10}$$

Me whakarea te \frac{25}{2} ki te \frac{1809}{10} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{25\times 1809}{2\times 10}$$

Mahia ngā whakarea i roto i te hautanga \frac{25\times 1809}{2\times 10}.

$$\frac{45225}{20}$$

Whakahekea te hautanga \frac{45225}{20} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.

$$\frac{9045}{4}$$

Tauwehe

$$\frac{3 ^ {3} \cdot 5 \cdot 67}{2 ^ {2}} = 2261\frac{1}{4} = 2261.25$$