Whakaoti i te 15-51/3*21/4

$$15-5 \frac{ 1 }{ 3 } \times 2 \frac{ 1 }{ 4 }$$

Aromātai

$$3$$

Ngā Upane Otinga

Whakareatia te 5 ki te 3, ka 15.

$$15-\frac{15+1}{3}\times \frac{2\times 4+1}{4}$$

Tāpirihia te 15 ki te 1, ka 16.

$$15-\frac{16}{3}\times \frac{2\times 4+1}{4}$$

Whakareatia te 2 ki te 4, ka 8.

$$15-\frac{16}{3}\times \frac{8+1}{4}$$

Tāpirihia te 8 ki te 1, ka 9.

$$15-\frac{16}{3}\times \frac{9}{4}$$

Me whakarea te \frac{16}{3} ki te \frac{9}{4} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$15-\frac{16\times 9}{3\times 4}$$

Mahia ngā whakarea i roto i te hautanga \frac{16\times 9}{3\times 4}.

$$15-\frac{144}{12}$$

Whakawehea te 144 ki te 12, kia riro ko 12.

$$15-12$$

Tangohia te 12 i te 15, ka 3.

$$3$$

Tauwehe

$$3$$