Whakaoti i te 3/6+8/5-11/2

$$\frac{ 3 }{ 6 } + \frac{ 8 }{ 5 } - \frac{ 11 }{ 2 }$$

Aromātai

$$-\frac{17}{5}=-3.4$$

Ngā Upane Otinga

Whakahekea te hautanga \frac{3}{6} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$\frac{1}{2}+\frac{8}{5}-\frac{11}{2}$$

Ko te maha noa iti rawa atu o 2 me 5 ko 10. Me tahuri \frac{1}{2} me \frac{8}{5} ki te hautau me te tautūnga 10.

$$\frac{5}{10}+\frac{16}{10}-\frac{11}{2}$$

Tā te mea he rite te tauraro o \frac{5}{10} me \frac{16}{10}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{5+16}{10}-\frac{11}{2}$$

Tāpirihia te 5 ki te 16, ka 21.

$$\frac{21}{10}-\frac{11}{2}$$

Ko te maha noa iti rawa atu o 10 me 2 ko 10. Me tahuri \frac{21}{10} me \frac{11}{2} ki te hautau me te tautūnga 10.

$$\frac{21}{10}-\frac{55}{10}$$

Tā te mea he rite te tauraro o \frac{21}{10} me \frac{55}{10}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{21-55}{10}$$

Tangohia te 55 i te 21, ka -34.

$$\frac{-34}{10}$$

Whakahekea te hautanga \frac{-34}{10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$-\frac{17}{5}$$

Tauwehe

$$-\frac{17}{5} = -3\frac{2}{5} = -3.4$$