Whakaoti i te 41/4div21/2

$$4 \frac { 1 } { 4 } \div 2 \frac { 1 } { 2 }$$

Aromātai

$$\frac{17}{10}=1.7$$

Ngā Upane Otinga

Whakawehe \frac{4\times 4+1}{4} ki te \frac{2\times 2+1}{2} mā te whakarea \frac{4\times 4+1}{4} ki te tau huripoki o \frac{2\times 2+1}{2}.

$$\frac{\left(4\times 4+1\right)\times 2}{4\left(2\times 2+1\right)}$$

Me whakakore tahi te 2 i te taurunga me te tauraro.

$$\frac{1+4\times 4}{2\left(1+2\times 2\right)}$$

Whakareatia te 4 ki te 4, ka 16.

$$\frac{1+16}{2\left(1+2\times 2\right)}$$

Tāpirihia te 1 ki te 16, ka 17.

$$\frac{17}{2\left(1+2\times 2\right)}$$

Whakareatia te 2 ki te 2, ka 4.

$$\frac{17}{2\left(1+4\right)}$$

Tāpirihia te 1 ki te 4, ka 5.

$$\frac{17}{2\times 5}$$

Whakareatia te 2 ki te 5, ka 10.

$$\frac{17}{10}$$

Tauwehe

$$\frac{17}{2 \cdot 5} = 1\frac{7}{10} = 1.7$$