Whakaoti i te 1/2*2.25*(2/15)^2+4.5*2/15

$$\frac { 1 } { 2 } \times 2.25 \times ( \frac { 2 } { 15 } ) ^ { 2 } + 4.5 \times \frac { 2 } { 15 }$$

Aromātai

$$0.62$$

Ngā Upane Otinga

Me tahuri ki tau ā-ira 2.25 ki te hautau \frac{225}{100}. Whakahekea te hautanga \frac{225}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 25.

$$\frac{1}{2}\times \frac{9}{4}\times \left(\frac{2}{15}\right)^{2}+4.5\times \frac{2}{15}$$

Me whakarea te \frac{1}{2} ki te \frac{9}{4} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{1\times 9}{2\times 4}\times \left(\frac{2}{15}\right)^{2}+4.5\times \frac{2}{15}$$

Mahia ngā whakarea i roto i te hautanga \frac{1\times 9}{2\times 4}.

$$\frac{9}{8}\times \left(\frac{2}{15}\right)^{2}+4.5\times \frac{2}{15}$$

Tātaihia te \frac{2}{15} mā te pū o 2, kia riro ko \frac{4}{225}.

$$\frac{9}{8}\times \frac{4}{225}+4.5\times \frac{2}{15}$$

Me whakarea te \frac{9}{8} ki te \frac{4}{225} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{9\times 4}{8\times 225}+4.5\times \frac{2}{15}$$

Mahia ngā whakarea i roto i te hautanga \frac{9\times 4}{8\times 225}.

$$\frac{36}{1800}+4.5\times \frac{2}{15}$$

Whakahekea te hautanga \frac{36}{1800} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 36.

$$\frac{1}{50}+4.5\times \frac{2}{15}$$

Me tahuri ki tau ā-ira 4.5 ki te hautau \frac{45}{10}. Whakahekea te hautanga \frac{45}{10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.

$$\frac{1}{50}+\frac{9}{2}\times \frac{2}{15}$$

Me whakarea te \frac{9}{2} ki te \frac{2}{15} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{1}{50}+\frac{9\times 2}{2\times 15}$$

Me whakakore tahi te 2 i te taurunga me te tauraro.

$$\frac{1}{50}+\frac{9}{15}$$

Whakahekea te hautanga \frac{9}{15} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$\frac{1}{50}+\frac{3}{5}$$

Ko te maha noa iti rawa atu o 50 me 5 ko 50. Me tahuri \frac{1}{50} me \frac{3}{5} ki te hautau me te tautūnga 50.

$$\frac{1}{50}+\frac{30}{50}$$

Tā te mea he rite te tauraro o \frac{1}{50} me \frac{30}{50}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{1+30}{50}$$

Tāpirihia te 1 ki te 30, ka 31.

$$\frac{31}{50}$$

Tauwehe

$$\frac{31}{2 \cdot 5 ^ {2}} = 0.62$$