Whakaoti i te 21/3*57/9

$$2 \frac { 1 } { 3 } \cdot 5 \frac { 7 } { 9 }$$

Aromātai

$$\frac{364}{27}\approx 13.481481481$$

Ngā Upane Otinga

Whakareatia te 2 ki te 3, ka 6.

$$\frac{6+1}{3}\times \frac{5\times 9+7}{9}$$

Tāpirihia te 6 ki te 1, ka 7.

$$\frac{7}{3}\times \frac{5\times 9+7}{9}$$

Whakareatia te 5 ki te 9, ka 45.

$$\frac{7}{3}\times \frac{45+7}{9}$$

Tāpirihia te 45 ki te 7, ka 52.

$$\frac{7}{3}\times \frac{52}{9}$$

Me whakarea te \frac{7}{3} ki te \frac{52}{9} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{7\times 52}{3\times 9}$$

Mahia ngā whakarea i roto i te hautanga \frac{7\times 52}{3\times 9}.

$$\frac{364}{27}$$

Tauwehe

$$\frac{2 ^ {2} \cdot 7 \cdot 13}{3 ^ {3}} = 13\frac{13}{27} = 13.481481481481481$$