Whakaoti i te (1000*80%div164*0.38)*80div2

$$(1000 \times 80 \% \div 164 \times 0.38) \times 80 \div 2$$

Aromātai

$$\frac{3040}{41}\approx 74.146341463$$

Ngā Upane Otinga

Whakahekea te hautanga \frac{80}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 20.

$$\frac{\frac{1000\times \frac{4}{5}}{164}\times 0.38\times 80}{2}$$

Tuhia te 1000\times \frac{4}{5} hei hautanga kotahi.

$$\frac{\frac{\frac{1000\times 4}{5}}{164}\times 0.38\times 80}{2}$$

Whakareatia te 1000 ki te 4, ka 4000.

$$\frac{\frac{\frac{4000}{5}}{164}\times 0.38\times 80}{2}$$

Whakawehea te 4000 ki te 5, kia riro ko 800.

$$\frac{\frac{800}{164}\times 0.38\times 80}{2}$$

Whakahekea te hautanga \frac{800}{164} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.

$$\frac{\frac{200}{41}\times 0.38\times 80}{2}$$

Me tahuri ki tau ā-ira 0.38 ki te hautau \frac{38}{100}. Whakahekea te hautanga \frac{38}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\frac{\frac{200}{41}\times \frac{19}{50}\times 80}{2}$$

Me whakarea te \frac{200}{41} ki te \frac{19}{50} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{\frac{200\times 19}{41\times 50}\times 80}{2}$$

Mahia ngā whakarea i roto i te hautanga \frac{200\times 19}{41\times 50}.

$$\frac{\frac{3800}{2050}\times 80}{2}$$

Whakahekea te hautanga \frac{3800}{2050} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 50.

$$\frac{\frac{76}{41}\times 80}{2}$$

Tuhia te \frac{76}{41}\times 80 hei hautanga kotahi.

$$\frac{\frac{76\times 80}{41}}{2}$$

Whakareatia te 76 ki te 80, ka 6080.

$$\frac{\frac{6080}{41}}{2}$$

Tuhia te \frac{\frac{6080}{41}}{2} hei hautanga kotahi.

$$\frac{6080}{41\times 2}$$

Whakareatia te 41 ki te 2, ka 82.

$$\frac{6080}{82}$$

Whakahekea te hautanga \frac{6080}{82} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\frac{3040}{41}$$

Tauwehe

$$\frac{5 \cdot 19 \cdot 2 ^ {5}}{41} = 74\frac{6}{41} = 74.14634146341463$$