Whakaoti i te 1/2-1/2*(1/2-3/4)=

$$\frac { 1 } { 2 } - \frac { 1 } { 2 } \cdot ( \frac { 1 } { 2 } - \frac { 3 } { 4 } ) =$$

Aromātai

$$\frac{5}{8}=0.625$$

Ngā Upane Otinga

Ko te maha noa iti rawa atu o 2 me 4 ko 4. Me tahuri \frac{1}{2} me \frac{3}{4} ki te hautau me te tautūnga 4.

$$\frac{1}{2}-\frac{1}{2}\left(\frac{2}{4}-\frac{3}{4}\right)$$

Tā te mea he rite te tauraro o \frac{2}{4} me \frac{3}{4}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{1}{2}-\frac{1}{2}\times \frac{2-3}{4}$$

Tangohia te 3 i te 2, ka -1.

$$\frac{1}{2}-\frac{1}{2}\left(-\frac{1}{4}\right)$$

Me whakarea te \frac{1}{2} ki te -\frac{1}{4} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{1}{2}-\frac{1\left(-1\right)}{2\times 4}$$

Mahia ngā whakarea i roto i te hautanga \frac{1\left(-1\right)}{2\times 4}.

$$\frac{1}{2}-\frac{-1}{8}$$

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

$$\frac{1}{2}-\left(-\frac{1}{8}\right)$$

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

$$\frac{1}{2}+\frac{1}{8}$$

Ko te maha noa iti rawa atu o 2 me 8 ko 8. Me tahuri \frac{1}{2} me \frac{1}{8} ki te hautau me te tautūnga 8.

$$\frac{4}{8}+\frac{1}{8}$$

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

$$\frac{4+1}{8}$$

Tāpirihia te 4 ki te 1, ka 5.

$$\frac{5}{8}$$

Tauwehe

$$\frac{5}{2 ^ {3}} = 0.625$$