Whakaoti i te 5*1+6*2+7*4+8*2+9/1+2+4+2+1

$$\frac{ 5 \times 1+6 \times 2+7 \times 4+8 \times 2+9 }{ 1+2+4+2+1 }$$

Aromātai

$$7$$

Ngā Upane Otinga

Whakareatia te 5 ki te 1, ka 5. Whakareatia te 6 ki te 2, ka 12. Whakareatia te 7 ki te 4, ka 28. Whakareatia te 8 ki te 2, ka 16.

$$\frac{5+12+28+16+9}{1+2+4+2+1}$$

Tāpirihia te 5 ki te 12, ka 17.

$$\frac{17+28+16+9}{1+2+4+2+1}$$

Tāpirihia te 17 ki te 28, ka 45.

$$\frac{45+16+9}{1+2+4+2+1}$$

Tāpirihia te 45 ki te 16, ka 61.

$$\frac{61+9}{1+2+4+2+1}$$

Tāpirihia te 61 ki te 9, ka 70.

$$\frac{70}{1+2+4+2+1}$$

Tāpirihia te 1 ki te 2, ka 3.

$$\frac{70}{3+4+2+1}$$

Tāpirihia te 3 ki te 4, ka 7.

$$\frac{70}{7+2+1}$$

Tāpirihia te 7 ki te 2, ka 9.

$$\frac{70}{9+1}$$

Tāpirihia te 9 ki te 1, ka 10.

$$\frac{70}{10}$$

Whakawehea te 70 ki te 10, kia riro ko 7.

$$7$$

Tauwehe

$$7$$