Whakaoti i te (4+7.4):4.2+15.2-1

$$( 4 + 7.4 ) : 4.2 + 15.2 - 1$$

Aromātai

$$\frac{592}{35}\approx 16.914285714$$

Ngā Upane Otinga

Tāpirihia te 4 ki te 7.4, ka 11.4.

$$\frac{11.4}{4.2}+15.2-1$$

Whakarohaina te \frac{11.4}{4.2} mā te whakarea i te taurunga me te tauraro ki te 10.

$$\frac{114}{42}+15.2-1$$

Whakahekea te hautanga \frac{114}{42} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 6.

$$\frac{19}{7}+15.2-1$$

Me tahuri ki tau ā-ira 15.2 ki te hautau \frac{152}{10}. Whakahekea te hautanga \frac{152}{10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\frac{19}{7}+\frac{76}{5}-1$$

Ko te maha noa iti rawa atu o 7 me 5 ko 35. Me tahuri \frac{19}{7} me \frac{76}{5} ki te hautau me te tautūnga 35.

$$\frac{95}{35}+\frac{532}{35}-1$$

Tā te mea he rite te tauraro o \frac{95}{35} me \frac{532}{35}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{95+532}{35}-1$$

Tāpirihia te 95 ki te 532, ka 627.

$$\frac{627}{35}-1$$

Me tahuri te 1 ki te hautau \frac{35}{35}.

$$\frac{627}{35}-\frac{35}{35}$$

Tā te mea he rite te tauraro o \frac{627}{35} me \frac{35}{35}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{627-35}{35}$$

Tangohia te 35 i te 627, ka 592.

$$\frac{592}{35}$$

Tauwehe

$$\frac{37 \cdot 2 ^ {4}}{5 \cdot 7} = 16\frac{32}{35} = 16.914285714285715$$