Whakaoti i te 2/5-1/4/frac{2{5}+1/4}

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

Aromātai

$$\frac{3}{13}\approx 0.230769231$$

Ngā Upane Otinga

Ko te maha noa iti rawa atu o 5 me 4 ko 20. Me tahuri \frac{2}{5} me \frac{1}{4} ki te hautau me te tautūnga 20.

$$\frac{\frac{8}{20}-\frac{5}{20}}{\frac{2}{5}+\frac{1}{4}}$$

Tā te mea he rite te tauraro o \frac{8}{20} me \frac{5}{20}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{\frac{8-5}{20}}{\frac{2}{5}+\frac{1}{4}}$$

Tangohia te 5 i te 8, ka 3.

$$\frac{\frac{3}{20}}{\frac{2}{5}+\frac{1}{4}}$$

Ko te maha noa iti rawa atu o 5 me 4 ko 20. Me tahuri \frac{2}{5} me \frac{1}{4} ki te hautau me te tautūnga 20.

$$\frac{\frac{3}{20}}{\frac{8}{20}+\frac{5}{20}}$$

Tā te mea he rite te tauraro o \frac{8}{20} me \frac{5}{20}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{\frac{3}{20}}{\frac{8+5}{20}}$$

Tāpirihia te 8 ki te 5, ka 13.

$$\frac{\frac{3}{20}}{\frac{13}{20}}$$

Whakawehe \frac{3}{20} ki te \frac{13}{20} mā te whakarea \frac{3}{20} ki te tau huripoki o \frac{13}{20}.

$$\frac{3}{20}\times \frac{20}{13}$$

Me whakarea te \frac{3}{20} ki te \frac{20}{13} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{3\times 20}{20\times 13}$$

Me whakakore tahi te 20 i te taurunga me te tauraro.

$$\frac{3}{13}$$

Tauwehe

$$\frac{3}{13} = 0.23076923076923078$$