Whakaoti i te 1/2*3.14*25-25

$$\frac{ 1 }{ 2 } \times 3.14 \times 25-25$$

Aromātai

$$14.25$$

Ngā Upane Otinga

Me tahuri ki tau ā-ira 3.14 ki te hautau \frac{314}{100}. Whakahekea te hautanga \frac{314}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\frac{1}{2}\times \frac{157}{50}\times 25-25$$

Me whakarea te \frac{1}{2} ki te \frac{157}{50} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{1\times 157}{2\times 50}\times 25-25$$

Mahia ngā whakarea i roto i te hautanga \frac{1\times 157}{2\times 50}.

$$\frac{157}{100}\times 25-25$$

Tuhia te \frac{157}{100}\times 25 hei hautanga kotahi.

$$\frac{157\times 25}{100}-25$$

Whakareatia te 157 ki te 25, ka 3925.

$$\frac{3925}{100}-25$$

Whakahekea te hautanga \frac{3925}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 25.

$$\frac{157}{4}-25$$

Me tahuri te 25 ki te hautau \frac{100}{4}.

$$\frac{157}{4}-\frac{100}{4}$$

Tā te mea he rite te tauraro o \frac{157}{4} me \frac{100}{4}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{157-100}{4}$$

Tangohia te 100 i te 157, ka 57.

$$\frac{57}{4}$$

Tauwehe

$$\frac{3 \cdot 19}{2 ^ {2}} = 14\frac{1}{4} = 14.25$$