Whakaoti i te 13/15div21/6

$$\frac { 13 } { 15 } \div 2 \frac { 1 } { 6 }$$

Aromātai

$$\frac{2}{5}=0.4$$

Ngā Upane Otinga

Whakawehe \frac{13}{15} ki te \frac{2\times 6+1}{6} mā te whakarea \frac{13}{15} ki te tau huripoki o \frac{2\times 6+1}{6}.

$$\frac{13\times 6}{15\left(2\times 6+1\right)}$$

Me whakakore tahi te 3 i te taurunga me te tauraro.

$$\frac{2\times 13}{5\left(1+2\times 6\right)}$$

Whakareatia te 2 ki te 13, ka 26.

$$\frac{26}{5\left(1+2\times 6\right)}$$

Whakareatia te 2 ki te 6, ka 12.

$$\frac{26}{5\left(1+12\right)}$$

Tāpirihia te 1 ki te 12, ka 13.

$$\frac{26}{5\times 13}$$

Whakareatia te 5 ki te 13, ka 65.

$$\frac{26}{65}$$

Whakahekea te hautanga \frac{26}{65} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 13.

$$\frac{2}{5}$$

Tauwehe

$$\frac{2}{5} = 0.4$$