Whakaoti i te (0.25*79-3.21*21/11)

$$( 0.25 \cdot 79 - 3.21 \cdot 2 \frac { 1 } { 11 } )$$

Aromātai

$$\frac{7171}{550}\approx 13.038181818$$

Ngā Upane Otinga

Whakareatia te 0.25 ki te 79, ka 19.75.

$$19.75-3.21\times \frac{2\times 11+1}{11}$$

Whakareatia te 2 ki te 11, ka 22.

$$19.75-3.21\times \frac{22+1}{11}$$

Tāpirihia te 22 ki te 1, ka 23.

$$19.75-3.21\times \frac{23}{11}$$

Me tahuri ki tau ā-ira 3.21 ki te hautau \frac{321}{100}.

$$19.75-\frac{321}{100}\times \frac{23}{11}$$

Me whakarea te \frac{321}{100} ki te \frac{23}{11} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$19.75-\frac{321\times 23}{100\times 11}$$

Mahia ngā whakarea i roto i te hautanga \frac{321\times 23}{100\times 11}.

$$19.75-\frac{7383}{1100}$$

Me tahuri ki tau ā-ira 19.75 ki te hautau \frac{1975}{100}. Whakahekea te hautanga \frac{1975}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 25.

$$\frac{79}{4}-\frac{7383}{1100}$$

Ko te maha noa iti rawa atu o 4 me 1100 ko 1100. Me tahuri \frac{79}{4} me \frac{7383}{1100} ki te hautau me te tautūnga 1100.

$$\frac{21725}{1100}-\frac{7383}{1100}$$

Tā te mea he rite te tauraro o \frac{21725}{1100} me \frac{7383}{1100}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{21725-7383}{1100}$$

Tangohia te 7383 i te 21725, ka 14342.

$$\frac{14342}{1100}$$

Whakahekea te hautanga \frac{14342}{1100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\frac{7171}{550}$$

Tauwehe

$$\frac{71 \cdot 101}{2 \cdot 11 \cdot 5 ^ {2}} = 13\frac{21}{550} = 13.038181818181819$$