Whakaoti i te -6/10*-2/7+2/5

$$\frac{ -6 }{ 10 } \times \frac{ -2 }{ 7 } + \frac{ 2 }{ 5 }$$

Aromātai

$$\frac{4}{7}\approx 0.571428571$$

Ngā Upane Otinga

Whakahekea te hautanga \frac{-6}{10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$-\frac{3}{5}\times \frac{-2}{7}+\frac{2}{5}$$

Ka taea te hautanga \frac{-2}{7} te tuhi anō ko -\frac{2}{7} mā te tango i te tohu tōraro.

$$-\frac{3}{5}\left(-\frac{2}{7}\right)+\frac{2}{5}$$

Me whakarea te -\frac{3}{5} ki te -\frac{2}{7} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{-3\left(-2\right)}{5\times 7}+\frac{2}{5}$$

Mahia ngā whakarea i roto i te hautanga \frac{-3\left(-2\right)}{5\times 7}.

$$\frac{6}{35}+\frac{2}{5}$$

Ko te maha noa iti rawa atu o 35 me 5 ko 35. Me tahuri \frac{6}{35} me \frac{2}{5} ki te hautau me te tautūnga 35.

$$\frac{6}{35}+\frac{14}{35}$$

Tā te mea he rite te tauraro o \frac{6}{35} me \frac{14}{35}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{6+14}{35}$$

Tāpirihia te 6 ki te 14, ka 20.

$$\frac{20}{35}$$

Whakahekea te hautanga \frac{20}{35} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.

$$\frac{4}{7}$$

Tauwehe

$$\frac{2 ^ {2}}{7} = 0.5714285714285714$$