Whakaoti i te 1-2/7-1/4

$$1 - \frac { 2 } { 7 } - \frac { 1 } { 4 }$$

Aromātai

$$\frac{13}{28}\approx 0.464285714$$

Ngā Upane Otinga

Me tahuri te 1 ki te hautau \frac{7}{7}.

$$\frac{7}{7}-\frac{2}{7}-\frac{1}{4}$$

Tā te mea he rite te tauraro o \frac{7}{7} me \frac{2}{7}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{7-2}{7}-\frac{1}{4}$$

Tangohia te 2 i te 7, ka 5.

$$\frac{5}{7}-\frac{1}{4}$$

Ko te maha noa iti rawa atu o 7 me 4 ko 28. Me tahuri \frac{5}{7} me \frac{1}{4} ki te hautau me te tautūnga 28.

$$\frac{20}{28}-\frac{7}{28}$$

Tā te mea he rite te tauraro o \frac{20}{28} me \frac{7}{28}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{20-7}{28}$$

Tangohia te 7 i te 20, ka 13.

$$\frac{13}{28}$$

Tauwehe

$$\frac{13}{2 ^ {2} \cdot 7} = 0.4642857142857143$$