Whakaoti i te 0.3^2+2/5

$$0.3 ^ { 2 } + \frac { 2 } { 5 }$$

Aromātai

$$0.49$$

Ngā Upane Otinga

Tātaihia te 0.3 mā te pū o 2, kia riro ko 0.09.

$$0.09+\frac{2}{5}$$

Me tahuri ki tau ā-ira 0.09 ki te hautau \frac{9}{100}.

$$\frac{9}{100}+\frac{2}{5}$$

Ko te maha noa iti rawa atu o 100 me 5 ko 100. Me tahuri \frac{9}{100} me \frac{2}{5} ki te hautau me te tautūnga 100.

$$\frac{9}{100}+\frac{40}{100}$$

Tā te mea he rite te tauraro o \frac{9}{100} me \frac{40}{100}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{9+40}{100}$$

Tāpirihia te 9 ki te 40, ka 49.

$$\frac{49}{100}$$

Tauwehe

$$\frac{7 ^ {2}}{2 ^ {2} \cdot 5 ^ {2}} = 0.49$$