Whakaoti i te 272/39-65/13

$$27 \frac { 2 } { 39 } - 6 \frac { 5 } { 13 }$$

Aromātai

$$\frac{62}{3}\approx 20.666666667$$

Ngā Upane Otinga

Whakareatia te 27 ki te 39, ka 1053.

$$\frac{1053+2}{39}-\frac{6\times 13+5}{13}$$

Tāpirihia te 1053 ki te 2, ka 1055.

$$\frac{1055}{39}-\frac{6\times 13+5}{13}$$

Whakareatia te 6 ki te 13, ka 78.

$$\frac{1055}{39}-\frac{78+5}{13}$$

Tāpirihia te 78 ki te 5, ka 83.

$$\frac{1055}{39}-\frac{83}{13}$$

Ko te maha noa iti rawa atu o 39 me 13 ko 39. Me tahuri \frac{1055}{39} me \frac{83}{13} ki te hautau me te tautūnga 39.

$$\frac{1055}{39}-\frac{249}{39}$$

Tā te mea he rite te tauraro o \frac{1055}{39} me \frac{249}{39}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{1055-249}{39}$$

Tangohia te 249 i te 1055, ka 806.

$$\frac{806}{39}$$

Whakahekea te hautanga \frac{806}{39} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 13.

$$\frac{62}{3}$$

Tauwehe

$$\frac{2 \cdot 31}{3} = 20\frac{2}{3} = 20.666666666666668$$