Whakaoti i te 13/10+14/5-11/4

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

Aromātai

$$\frac{37}{20}=1.85$$

Ngā Upane Otinga

Whakareatia te 1 ki te 10, ka 10.

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

Tāpirihia te 10 ki te 3, ka 13.

$$\frac{13}{10}+\frac{1\times 5+4}{5}-\frac{1\times 4+1}{4}$$

Whakareatia te 1 ki te 5, ka 5.

$$\frac{13}{10}+\frac{5+4}{5}-\frac{1\times 4+1}{4}$$

Tāpirihia te 5 ki te 4, ka 9.

$$\frac{13}{10}+\frac{9}{5}-\frac{1\times 4+1}{4}$$

Ko te maha noa iti rawa atu o 10 me 5 ko 10. Me tahuri \frac{13}{10} me \frac{9}{5} ki te hautau me te tautūnga 10.

$$\frac{13}{10}+\frac{18}{10}-\frac{1\times 4+1}{4}$$

Tā te mea he rite te tauraro o \frac{13}{10} me \frac{18}{10}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{13+18}{10}-\frac{1\times 4+1}{4}$$

Tāpirihia te 13 ki te 18, ka 31.

$$\frac{31}{10}-\frac{1\times 4+1}{4}$$

Whakareatia te 1 ki te 4, ka 4.

$$\frac{31}{10}-\frac{4+1}{4}$$

Tāpirihia te 4 ki te 1, ka 5.

$$\frac{31}{10}-\frac{5}{4}$$

Ko te maha noa iti rawa atu o 10 me 4 ko 20. Me tahuri \frac{31}{10} me \frac{5}{4} ki te hautau me te tautūnga 20.

$$\frac{62}{20}-\frac{25}{20}$$

Tā te mea he rite te tauraro o \frac{62}{20} me \frac{25}{20}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{62-25}{20}$$

Tangohia te 25 i te 62, ka 37.

$$\frac{37}{20}$$

Tauwehe

$$\frac{37}{2 ^ {2} \cdot 5} = 1\frac{17}{20} = 1.85$$