Whakaoti i te 71/12*18:(-51)

$$7 \frac { 1 } { 12 } \cdot 18 : ( - 51 )$$

Aromātai

$$-\frac{5}{2}=-2.5$$

Ngā Upane Otinga

Whakareatia te 7 ki te 12, ka 84.

$$\frac{\frac{84+1}{12}\times 18}{-51}$$

Tāpirihia te 84 ki te 1, ka 85.

$$\frac{\frac{85}{12}\times 18}{-51}$$

Tuhia te \frac{85}{12}\times 18 hei hautanga kotahi.

$$\frac{\frac{85\times 18}{12}}{-51}$$

Whakareatia te 85 ki te 18, ka 1530.

$$\frac{\frac{1530}{12}}{-51}$$

Whakahekea te hautanga \frac{1530}{12} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 6.

$$\frac{\frac{255}{2}}{-51}$$

Tuhia te \frac{\frac{255}{2}}{-51} hei hautanga kotahi.

$$\frac{255}{2\left(-51\right)}$$

Whakareatia te 2 ki te -51, ka -102.

$$\frac{255}{-102}$$

Whakahekea te hautanga \frac{255}{-102} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 51.

$$-\frac{5}{2}$$

Tauwehe

$$-\frac{5}{2} = -2\frac{1}{2} = -2.5$$