Whakaoti i te (2/5*3+2):4=

$$( \frac { 2 } { 5 } \cdot 3 + 2 ) : 4 =$$

Aromātai

$$\frac{4}{5}=0.8$$

Ngā Upane Otinga

Tuhia te \frac{2}{5}\times 3 hei hautanga kotahi.

$$\frac{\frac{2\times 3}{5}+2}{4}$$

Whakareatia te 2 ki te 3, ka 6.

$$\frac{\frac{6}{5}+2}{4}$$

Me tahuri te 2 ki te hautau \frac{10}{5}.

$$\frac{\frac{6}{5}+\frac{10}{5}}{4}$$

Tā te mea he rite te tauraro o \frac{6}{5} me \frac{10}{5}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{\frac{6+10}{5}}{4}$$

Tāpirihia te 6 ki te 10, ka 16.

$$\frac{\frac{16}{5}}{4}$$

Tuhia te \frac{\frac{16}{5}}{4} hei hautanga kotahi.

$$\frac{16}{5\times 4}$$

Whakareatia te 5 ki te 4, ka 20.

$$\frac{16}{20}$$

Whakahekea te hautanga \frac{16}{20} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.

$$\frac{4}{5}$$

Tauwehe

$$\frac{2 ^ {2}}{5} = 0.8$$