Whakaoti i te 2/5+3/10-1/20/2/3+1/2+5/6

$$\frac { 2 / 5 + 3 / 10 - 1 / 20 } { 2 / 3 + 1 / 2 + 5 / 6 }$$

Aromātai

$$\frac{13}{40}=0.325$$

Ngā Upane Otinga

Ko te maha noa iti rawa atu o 5 me 10 ko 10. Me tahuri \frac{2}{5} me \frac{3}{10} ki te hautau me te tautūnga 10.

$$\frac{\frac{4}{10}+\frac{3}{10}-\frac{1}{20}}{\frac{2}{3}+\frac{1}{2}+\frac{5}{6}}$$

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

$$\frac{\frac{4+3}{10}-\frac{1}{20}}{\frac{2}{3}+\frac{1}{2}+\frac{5}{6}}$$

Tāpirihia te 4 ki te 3, ka 7.

$$\frac{\frac{7}{10}-\frac{1}{20}}{\frac{2}{3}+\frac{1}{2}+\frac{5}{6}}$$

Ko te maha noa iti rawa atu o 10 me 20 ko 20. Me tahuri \frac{7}{10} me \frac{1}{20} ki te hautau me te tautūnga 20.

$$\frac{\frac{14}{20}-\frac{1}{20}}{\frac{2}{3}+\frac{1}{2}+\frac{5}{6}}$$

Tā te mea he rite te tauraro o \frac{14}{20} me \frac{1}{20}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{\frac{14-1}{20}}{\frac{2}{3}+\frac{1}{2}+\frac{5}{6}}$$

Tangohia te 1 i te 14, ka 13.

$$\frac{\frac{13}{20}}{\frac{2}{3}+\frac{1}{2}+\frac{5}{6}}$$

Ko te maha noa iti rawa atu o 3 me 2 ko 6. Me tahuri \frac{2}{3} me \frac{1}{2} ki te hautau me te tautūnga 6.

$$\frac{\frac{13}{20}}{\frac{4}{6}+\frac{3}{6}+\frac{5}{6}}$$

Tā te mea he rite te tauraro o \frac{4}{6} me \frac{3}{6}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{\frac{13}{20}}{\frac{4+3}{6}+\frac{5}{6}}$$

Tāpirihia te 4 ki te 3, ka 7.

$$\frac{\frac{13}{20}}{\frac{7}{6}+\frac{5}{6}}$$

Tā te mea he rite te tauraro o \frac{7}{6} me \frac{5}{6}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{\frac{13}{20}}{\frac{7+5}{6}}$$

Tāpirihia te 7 ki te 5, ka 12.

$$\frac{\frac{13}{20}}{\frac{12}{6}}$$

Whakawehea te 12 ki te 6, kia riro ko 2.

$$\frac{\frac{13}{20}}{2}$$

Tuhia te \frac{\frac{13}{20}}{2} hei hautanga kotahi.

$$\frac{13}{20\times 2}$$

Whakareatia te 20 ki te 2, ka 40.

$$\frac{13}{40}$$

Tauwehe

$$\frac{13}{2 ^ {3} \cdot 5} = 0.325$$