Whakaoti i te 2-(5/2+3/4)div(1-4/5

$$2 - ( \frac { 5 } { 2 } + \frac { 3 } { 4 } ) \div ( 1 - \frac { 4 } { 5 }$$

Aromātai

$$-\frac{57}{4}=-14.25$$

Ngā Upane Otinga

Ko te maha noa iti rawa atu o 2 me 4 ko 4. Me tahuri \frac{5}{2} me \frac{3}{4} ki te hautau me te tautūnga 4.

$$2-\frac{\frac{10}{4}+\frac{3}{4}}{1-\frac{4}{5}}$$

Tā te mea he rite te tauraro o \frac{10}{4} me \frac{3}{4}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$2-\frac{\frac{10+3}{4}}{1-\frac{4}{5}}$$

Tāpirihia te 10 ki te 3, ka 13.

$$2-\frac{\frac{13}{4}}{1-\frac{4}{5}}$$

Me tahuri te 1 ki te hautau \frac{5}{5}.

$$2-\frac{\frac{13}{4}}{\frac{5}{5}-\frac{4}{5}}$$

Tā te mea he rite te tauraro o \frac{5}{5} me \frac{4}{5}, me tango rāua mā te tango i ō raua taurunga.

$$2-\frac{\frac{13}{4}}{\frac{5-4}{5}}$$

Tangohia te 4 i te 5, ka 1.

$$2-\frac{\frac{13}{4}}{\frac{1}{5}}$$

Whakawehe \frac{13}{4} ki te \frac{1}{5} mā te whakarea \frac{13}{4} ki te tau huripoki o \frac{1}{5}.

$$2-\frac{13}{4}\times 5$$

Tuhia te \frac{13}{4}\times 5 hei hautanga kotahi.

$$2-\frac{13\times 5}{4}$$

Whakareatia te 13 ki te 5, ka 65.

$$2-\frac{65}{4}$$

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

$$\frac{8}{4}-\frac{65}{4}$$

Tā te mea he rite te tauraro o \frac{8}{4} me \frac{65}{4}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{8-65}{4}$$

Tangohia te 65 i te 8, ka -57.

$$-\frac{57}{4}$$

Tauwehe

$$-\frac{57}{4} = -14\frac{1}{4} = -14.25$$