Whakaoti i te -7/12+4/12*-12/5

$$- \frac{ 7 }{ 12 } + \frac{ 4 }{ 12 } \times - \frac{ 12 }{ 5 }$$

Aromātai

$$-\frac{83}{60}\approx -1.383333333$$

Ngā Upane Otinga

Whakahekea te hautanga \frac{4}{12} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.

$$-\frac{7}{12}+\frac{1}{3}\left(-\frac{12}{5}\right)$$

Me whakarea te \frac{1}{3} ki te -\frac{12}{5} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$-\frac{7}{12}+\frac{1\left(-12\right)}{3\times 5}$$

Mahia ngā whakarea i roto i te hautanga \frac{1\left(-12\right)}{3\times 5}.

$$-\frac{7}{12}+\frac{-12}{15}$$

Whakahekea te hautanga \frac{-12}{15} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$-\frac{7}{12}-\frac{4}{5}$$

Ko te maha noa iti rawa atu o 12 me 5 ko 60. Me tahuri -\frac{7}{12} me \frac{4}{5} ki te hautau me te tautūnga 60.

$$-\frac{35}{60}-\frac{48}{60}$$

Tā te mea he rite te tauraro o -\frac{35}{60} me \frac{48}{60}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{-35-48}{60}$$

Tangohia te 48 i te -35, ka -83.

$$-\frac{83}{60}$$

Tauwehe

$$-\frac{83}{60} = -1\frac{23}{60} = -1.3833333333333333$$