Whakaoti i te 12left(3+1/2right)div1*30+0*70

$$12 \left( 3+ \frac{ 1 }{ 2 } \right) \div 1 \cdot 30+0 \cdot 70$$

Aromātai

$$1260$$

Ngā Upane Otinga

Me tahuri te 3 ki te hautau \frac{6}{2}.

$$\frac{12\left(\frac{6}{2}+\frac{1}{2}\right)}{1}\times 30+0\times 70$$

Tā te mea he rite te tauraro o \frac{6}{2} me \frac{1}{2}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{12\times \frac{6+1}{2}}{1}\times 30+0\times 70$$

Tāpirihia te 6 ki te 1, ka 7.

$$\frac{12\times \frac{7}{2}}{1}\times 30+0\times 70$$

Tuhia te 12\times \frac{7}{2} hei hautanga kotahi.

$$\frac{\frac{12\times 7}{2}}{1}\times 30+0\times 70$$

Whakareatia te 12 ki te 7, ka 84.

$$\frac{\frac{84}{2}}{1}\times 30+0\times 70$$

Whakawehea te 84 ki te 2, kia riro ko 42.

$$\frac{42}{1}\times 30+0\times 70$$

Ka whakawehea he tau ki te tahi, hua ai ko ia anō.

$$42\times 30+0\times 70$$

Whakareatia te 42 ki te 30, ka 1260.

$$1260+0\times 70$$

Whakareatia te 0 ki te 70, ka 0.

$$1260+0$$

Tāpirihia te 1260 ki te 0, ka 1260.

$$1260$$

Tauwehe

$$2^{2}\times 3^{2}\times 5\times 7$$