Whakaoti i te 672*21/3-372*21/3=

$$672 \cdot 2 \frac { 1 } { 3 } - 372 \cdot 2 \frac { 1 } { 3 } =$$

Aromātai

$$700$$

Ngā Upane Otinga

Whakareatia te 2 ki te 3, ka 6.

$$672\times \frac{6+1}{3}-372\times \frac{2\times 3+1}{3}$$

Tāpirihia te 6 ki te 1, ka 7.

$$672\times \frac{7}{3}-372\times \frac{2\times 3+1}{3}$$

Tuhia te 672\times \frac{7}{3} hei hautanga kotahi.

$$\frac{672\times 7}{3}-372\times \frac{2\times 3+1}{3}$$

Whakareatia te 672 ki te 7, ka 4704.

$$\frac{4704}{3}-372\times \frac{2\times 3+1}{3}$$

Whakawehea te 4704 ki te 3, kia riro ko 1568.

$$1568-372\times \frac{2\times 3+1}{3}$$

Whakareatia te 2 ki te 3, ka 6.

$$1568-372\times \frac{6+1}{3}$$

Tāpirihia te 6 ki te 1, ka 7.

$$1568-372\times \frac{7}{3}$$

Tuhia te 372\times \frac{7}{3} hei hautanga kotahi.

$$1568-\frac{372\times 7}{3}$$

Whakareatia te 372 ki te 7, ka 2604.

$$1568-\frac{2604}{3}$$

Whakawehea te 2604 ki te 3, kia riro ko 868.

$$1568-868$$

Tangohia te 868 i te 1568, ka 700.

$$700$$

Tauwehe

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