Whakaoti i te 2-1/4-(-1/8)-1/10=

$$2 - \frac { 1 } { 4 } - ( \frac { - 1 } { 8 } ) - \frac { 1 } { 10 } =$$

Aromātai

$$\frac{71}{40}=1.775$$

Ngā Upane Otinga

Me tahuri te 2 ki te hautau \frac{8}{4}.

$$\frac{8}{4}-\frac{1}{4}-\frac{-1}{8}-\frac{1}{10}$$

Tā te mea he rite te tauraro o \frac{8}{4} me \frac{1}{4}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{8-1}{4}-\frac{-1}{8}-\frac{1}{10}$$

Tangohia te 1 i te 8, ka 7.

$$\frac{7}{4}-\frac{-1}{8}-\frac{1}{10}$$

Ka taea te hautanga \frac{-1}{8} te tuhi anō ko -\frac{1}{8} mā te tango i te tohu tōraro.

$$\frac{7}{4}-\left(-\frac{1}{8}\right)-\frac{1}{10}$$

Ko te tauaro o -\frac{1}{8} ko \frac{1}{8}.

$$\frac{7}{4}+\frac{1}{8}-\frac{1}{10}$$

Ko te maha noa iti rawa atu o 4 me 8 ko 8. Me tahuri \frac{7}{4} me \frac{1}{8} ki te hautau me te tautūnga 8.

$$\frac{14}{8}+\frac{1}{8}-\frac{1}{10}$$

Tā te mea he rite te tauraro o \frac{14}{8} me \frac{1}{8}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{14+1}{8}-\frac{1}{10}$$

Tāpirihia te 14 ki te 1, ka 15.

$$\frac{15}{8}-\frac{1}{10}$$

Ko te maha noa iti rawa atu o 8 me 10 ko 40. Me tahuri \frac{15}{8} me \frac{1}{10} ki te hautau me te tautūnga 40.

$$\frac{75}{40}-\frac{4}{40}$$

Tā te mea he rite te tauraro o \frac{75}{40} me \frac{4}{40}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{75-4}{40}$$

Tangohia te 4 i te 75, ka 71.

$$\frac{71}{40}$$

Tauwehe

$$\frac{71}{2 ^ {3} \cdot 5} = 1\frac{31}{40} = 1.775$$