Whakaoti i te 30*10^5*10^-3*2/1.2*10^5

$$\frac { 30 \times 10 ^ { 5 } \times 10 ^ { - 3 } \times 2 } { 1.2 \times 10 ^ { 5 } }$$

Aromātai

$$0.05$$

Ngā Upane Otinga

Hei whakarea i ngā pū o te pūtake kotahi, me tāpiri ō rātou taupū. Tāpiria te 5 me te -3 kia riro ai te 2.

$$\frac{30\times 10^{2}\times 2}{1.2\times 10^{5}}$$

Me whakakore tahi te 10^{2} i te taurunga me te tauraro.

$$\frac{2\times 30}{1.2\times 10^{3}}$$

Whakareatia te 2 ki te 30, ka 60.

$$\frac{60}{1.2\times 10^{3}}$$

Tātaihia te 10 mā te pū o 3, kia riro ko 1000.

$$\frac{60}{1.2\times 1000}$$

Whakareatia te 1.2 ki te 1000, ka 1200.

$$\frac{60}{1200}$$

Whakahekea te hautanga \frac{60}{1200} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 60.

$$\frac{1}{20}$$

Tauwehe

$$\frac{1}{5 \cdot 2 ^ {2}} = 0.05$$