Whakaoti i te 31/2*5*3/7

$$3 \frac{ 1 }{ 2 } \times 5 \times \frac{ 3 }{ 7 }$$

Aromātai

$$\frac{15}{2}=7.5$$

Ngā Upane Otinga

Whakareatia te 3 ki te 2, ka 6.

$$\frac{6+1}{2}\times 5\times \frac{3}{7}$$

Tāpirihia te 6 ki te 1, ka 7.

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

Tuhia te \frac{7}{2}\times 5 hei hautanga kotahi.

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

Whakareatia te 7 ki te 5, ka 35.

$$\frac{35}{2}\times \frac{3}{7}$$

Me whakarea te \frac{35}{2} ki te \frac{3}{7} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{35\times 3}{2\times 7}$$

Mahia ngā whakarea i roto i te hautanga \frac{35\times 3}{2\times 7}.

$$\frac{105}{14}$$

Whakahekea te hautanga \frac{105}{14} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 7.

$$\frac{15}{2}$$

Tauwehe

$$\frac{3 \cdot 5}{2} = 7\frac{1}{2} = 7.5$$