Whakaoti i te -2/4-2+1/9

$$- \frac{ 2 }{ 4 } -2+ \frac{ 1 }{ 9 }$$

Aromātai

$$-\frac{43}{18}\approx -2.388888889$$

Ngā Upane Otinga

Whakahekea te hautanga \frac{2}{4} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$-\frac{1}{2}-2+\frac{1}{9}$$

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

$$-\frac{1}{2}-\frac{4}{2}+\frac{1}{9}$$

Tā te mea he rite te tauraro o -\frac{1}{2} me \frac{4}{2}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{-1-4}{2}+\frac{1}{9}$$

Tangohia te 4 i te -1, ka -5.

$$-\frac{5}{2}+\frac{1}{9}$$

Ko te maha noa iti rawa atu o 2 me 9 ko 18. Me tahuri -\frac{5}{2} me \frac{1}{9} ki te hautau me te tautūnga 18.

$$-\frac{45}{18}+\frac{2}{18}$$

Tā te mea he rite te tauraro o -\frac{45}{18} me \frac{2}{18}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{-45+2}{18}$$

Tāpirihia te -45 ki te 2, ka -43.

$$-\frac{43}{18}$$

Tauwehe

$$-\frac{43}{18} = -2\frac{7}{18} = -2.388888888888889$$