Whakaoti i te 1/2*21/2(11/2+2)

$$\frac{ 1 }{ 2 } \times 2 \frac{ 1 }{ 2 } (1 \frac{ 1 }{ 2 } +2)$$

Aromātai

$$\frac{35}{8}=4.375$$

Ngā Upane Otinga

Whakareatia te 2 ki te 2, ka 4.

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

Tāpirihia te 4 ki te 1, ka 5.

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

Me whakarea te \frac{1}{2} ki te \frac{5}{2} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

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

Mahia ngā whakarea i roto i te hautanga \frac{1\times 5}{2\times 2}.

$$\frac{5}{4}\left(\frac{1\times 2+1}{2}+2\right)$$

Whakareatia te 1 ki te 2, ka 2.

$$\frac{5}{4}\left(\frac{2+1}{2}+2\right)$$

Tāpirihia te 2 ki te 1, ka 3.

$$\frac{5}{4}\left(\frac{3}{2}+2\right)$$

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

$$\frac{5}{4}\left(\frac{3}{2}+\frac{4}{2}\right)$$

Tā te mea he rite te tauraro o \frac{3}{2} me \frac{4}{2}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{5}{4}\times \frac{3+4}{2}$$

Tāpirihia te 3 ki te 4, ka 7.

$$\frac{5}{4}\times \frac{7}{2}$$

Me whakarea te \frac{5}{4} ki te \frac{7}{2} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{5\times 7}{4\times 2}$$

Mahia ngā whakarea i roto i te hautanga \frac{5\times 7}{4\times 2}.

$$\frac{35}{8}$$

Tauwehe

$$\frac{5 \cdot 7}{2 ^ {3}} = 4\frac{3}{8} = 4.375$$