Whakaoti i te (-25)-1/2+(-1/5)

$$( - 25 ) - \frac { 1 } { 2 } + ( - \frac { 1 } { 5 } )$$

Aromātai

$$-\frac{257}{10}=-25.7$$

Ngā Upane Otinga

Me tahuri te -25 ki te hautau -\frac{50}{2}.

$$-\frac{50}{2}-\frac{1}{2}-\frac{1}{5}$$

Tā te mea he rite te tauraro o -\frac{50}{2} me \frac{1}{2}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{-50-1}{2}-\frac{1}{5}$$

Tangohia te 1 i te -50, ka -51.

$$-\frac{51}{2}-\frac{1}{5}$$

Ko te maha noa iti rawa atu o 2 me 5 ko 10. Me tahuri -\frac{51}{2} me \frac{1}{5} ki te hautau me te tautūnga 10.

$$-\frac{255}{10}-\frac{2}{10}$$

Tā te mea he rite te tauraro o -\frac{255}{10} me \frac{2}{10}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{-255-2}{10}$$

Tangohia te 2 i te -255, ka -257.

$$-\frac{257}{10}$$

Tauwehe

$$-\frac{257}{10} = -25\frac{7}{10} = -25.7$$