Whakaoti i te -7/20-8/15-23/60=

$$- \frac { 7 } { 20 } - \frac { 8 } { 15 } - \frac { 23 } { 60 } =$$

Aromātai

$$-\frac{19}{15}\approx -1.266666667$$

Ngā Upane Otinga

Ko te maha noa iti rawa atu o 20 me 15 ko 60. Me tahuri -\frac{7}{20} me \frac{8}{15} ki te hautau me te tautūnga 60.

$$-\frac{21}{60}-\frac{32}{60}-\frac{23}{60}$$

Tā te mea he rite te tauraro o -\frac{21}{60} me \frac{32}{60}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{-21-32}{60}-\frac{23}{60}$$

Tangohia te 32 i te -21, ka -53.

$$-\frac{53}{60}-\frac{23}{60}$$

Tā te mea he rite te tauraro o -\frac{53}{60} me \frac{23}{60}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{-53-23}{60}$$

Tangohia te 23 i te -53, ka -76.

$$\frac{-76}{60}$$

Whakahekea te hautanga \frac{-76}{60} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.

$$-\frac{19}{15}$$

Tauwehe

$$-\frac{19}{15} = -1\frac{4}{15} = -1.2666666666666666$$