Whakaoti i te (3/4+05)-(4/5-02)

$$( \frac { 3 } { 4 } + 05 ) - ( \frac { 4 } { 5 } - 02 )$$

Aromātai

$$-\frac{1}{20}=-0.05$$

Ngā Upane Otinga

Whakareatia te 0 ki te 5, ka 0.

$$\frac{3}{4}+0-\left(\frac{4}{5}-0\times 2\right)$$

Tāpirihia te \frac{3}{4} ki te 0, ka \frac{3}{4}.

$$\frac{3}{4}-\left(\frac{4}{5}-0\times 2\right)$$

Whakareatia te 0 ki te 2, ka 0.

$$\frac{3}{4}-\left(\frac{4}{5}-0\right)$$

Tangohia te 0 i te \frac{4}{5}, ka \frac{4}{5}.

$$\frac{3}{4}-\frac{4}{5}$$

Ko te maha noa iti rawa atu o 4 me 5 ko 20. Me tahuri \frac{3}{4} me \frac{4}{5} ki te hautau me te tautūnga 20.

$$\frac{15}{20}-\frac{16}{20}$$

Tā te mea he rite te tauraro o \frac{15}{20} me \frac{16}{20}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{15-16}{20}$$

Tangohia te 16 i te 15, ka -1.

$$-\frac{1}{20}$$

Tauwehe

$$-\frac{1}{20} = -0.05$$