Whakaoti i te 10^2-41div2.8*1.71

$${ 10 }^{ 2 } -41 \div 2.8 \times 1.71$$

Aromātai

$$\frac{20989}{280}\approx 74.960714286$$

Ngā Upane Otinga

Tātaihia te 10 mā te pū o 2, kia riro ko 100.

$$100-\frac{41}{2.8}\times 1.71$$

Whakarohaina te \frac{41}{2.8} mā te whakarea i te taurunga me te tauraro ki te 10.

$$100-\frac{410}{28}\times 1.71$$

Whakahekea te hautanga \frac{410}{28} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$100-\frac{205}{14}\times 1.71$$

Me tahuri ki tau ā-ira 1.71 ki te hautau \frac{171}{100}.

$$100-\frac{205}{14}\times \frac{171}{100}$$

Me whakarea te \frac{205}{14} ki te \frac{171}{100} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$100-\frac{205\times 171}{14\times 100}$$

Mahia ngā whakarea i roto i te hautanga \frac{205\times 171}{14\times 100}.

$$100-\frac{35055}{1400}$$

Whakahekea te hautanga \frac{35055}{1400} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.

$$100-\frac{7011}{280}$$

Me tahuri te 100 ki te hautau \frac{28000}{280}.

$$\frac{28000}{280}-\frac{7011}{280}$$

Tā te mea he rite te tauraro o \frac{28000}{280} me \frac{7011}{280}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{28000-7011}{280}$$

Tangohia te 7011 i te 28000, ka 20989.

$$\frac{20989}{280}$$

Tauwehe

$$\frac{139 \cdot 151}{5 \cdot 7 \cdot 2 ^ {3}} = 74\frac{269}{280} = 74.96071428571429$$