Whakaoti i te 1/4[4/5-(8/3div2/9)]

$$\frac { 1 } { 4 } [ \frac { 4 } { 5 } - ( \frac { 8 } { 3 } \div \frac { 2 } { 9 } ) ]$$

Aromātai

$$-\frac{14}{5}=-2.8$$

Ngā Upane Otinga

Whakawehe \frac{8}{3} ki te \frac{2}{9} mā te whakarea \frac{8}{3} ki te tau huripoki o \frac{2}{9}.

$$\frac{1}{4}\left(\frac{4}{5}-\frac{8}{3}\times \frac{9}{2}\right)$$

Me whakarea te \frac{8}{3} ki te \frac{9}{2} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{1}{4}\left(\frac{4}{5}-\frac{8\times 9}{3\times 2}\right)$$

Mahia ngā whakarea i roto i te hautanga \frac{8\times 9}{3\times 2}.

$$\frac{1}{4}\left(\frac{4}{5}-\frac{72}{6}\right)$$

Whakawehea te 72 ki te 6, kia riro ko 12.

$$\frac{1}{4}\left(\frac{4}{5}-12\right)$$

Me tahuri te 12 ki te hautau \frac{60}{5}.

$$\frac{1}{4}\left(\frac{4}{5}-\frac{60}{5}\right)$$

Tā te mea he rite te tauraro o \frac{4}{5} me \frac{60}{5}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{1}{4}\times \frac{4-60}{5}$$

Tangohia te 60 i te 4, ka -56.

$$\frac{1}{4}\left(-\frac{56}{5}\right)$$

Me whakarea te \frac{1}{4} ki te -\frac{56}{5} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{1\left(-56\right)}{4\times 5}$$

Mahia ngā whakarea i roto i te hautanga \frac{1\left(-56\right)}{4\times 5}.

$$\frac{-56}{20}$$

Whakahekea te hautanga \frac{-56}{20} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.

$$-\frac{14}{5}$$

Tauwehe

$$-\frac{14}{5} = -2\frac{4}{5} = -2.8$$