Whakaoti i te (2+1/4)*(6-1/30)=

$$( 2 + \frac { 1 } { 4 } ) \times ( 6 - \frac { 1 } { 30 } ) =$$

Aromātai

$$\frac{537}{40}=13.425$$

Ngā Upane Otinga

Me tahuri te 2 ki te hautau \frac{8}{4}.

$$\left(\frac{8}{4}+\frac{1}{4}\right)\left(6-\frac{1}{30}\right)$$

Tā te mea he rite te tauraro o \frac{8}{4} me \frac{1}{4}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{8+1}{4}\left(6-\frac{1}{30}\right)$$

Tāpirihia te 8 ki te 1, ka 9.

$$\frac{9}{4}\left(6-\frac{1}{30}\right)$$

Me tahuri te 6 ki te hautau \frac{180}{30}.

$$\frac{9}{4}\left(\frac{180}{30}-\frac{1}{30}\right)$$

Tā te mea he rite te tauraro o \frac{180}{30} me \frac{1}{30}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{9}{4}\times \frac{180-1}{30}$$

Tangohia te 1 i te 180, ka 179.

$$\frac{9}{4}\times \frac{179}{30}$$

Me whakarea te \frac{9}{4} ki te \frac{179}{30} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{9\times 179}{4\times 30}$$

Mahia ngā whakarea i roto i te hautanga \frac{9\times 179}{4\times 30}.

$$\frac{1611}{120}$$

Whakahekea te hautanga \frac{1611}{120} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$\frac{537}{40}$$

Tauwehe

$$\frac{3 \cdot 179}{2 ^ {3} \cdot 5} = 13\frac{17}{40} = 13.425$$