Whakaoti i te 1/20+1/10+2/10+1/4+frac{3}{10}+frac{20}{1}

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

Aromātai

$$\frac{209}{10}=20.9$$

Ngā Upane Otinga

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

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

Tā te mea he rite te tauraro o \frac{1}{20} me \frac{2}{20}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

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

Tāpirihia te 1 ki te 2, ka 3.

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

Whakahekea te hautanga \frac{2}{10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

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

Ko te maha noa iti rawa atu o 20 me 5 ko 20. Me tahuri \frac{3}{20} me \frac{1}{5} ki te hautau me te tautūnga 20.

$$\frac{3}{20}+\frac{4}{20}+\frac{1}{4}+\frac{3}{10}+\frac{20}{1}$$

Tā te mea he rite te tauraro o \frac{3}{20} me \frac{4}{20}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{3+4}{20}+\frac{1}{4}+\frac{3}{10}+\frac{20}{1}$$

Tāpirihia te 3 ki te 4, ka 7.

$$\frac{7}{20}+\frac{1}{4}+\frac{3}{10}+\frac{20}{1}$$

Ko te maha noa iti rawa atu o 20 me 4 ko 20. Me tahuri \frac{7}{20} me \frac{1}{4} ki te hautau me te tautūnga 20.

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

Tā te mea he rite te tauraro o \frac{7}{20} me \frac{5}{20}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

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

Tāpirihia te 7 ki te 5, ka 12.

$$\frac{12}{20}+\frac{3}{10}+\frac{20}{1}$$

Whakahekea te hautanga \frac{12}{20} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.

$$\frac{3}{5}+\frac{3}{10}+\frac{20}{1}$$

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

$$\frac{6}{10}+\frac{3}{10}+\frac{20}{1}$$

Tā te mea he rite te tauraro o \frac{6}{10} me \frac{3}{10}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{6+3}{10}+\frac{20}{1}$$

Tāpirihia te 6 ki te 3, ka 9.

$$\frac{9}{10}+\frac{20}{1}$$

Ka whakawehea he tau ki te tahi, hua ai ko ia anō.

$$\frac{9}{10}+20$$

Me tahuri te 20 ki te hautau \frac{200}{10}.

$$\frac{9}{10}+\frac{200}{10}$$

Tā te mea he rite te tauraro o \frac{9}{10} me \frac{200}{10}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$\frac{9+200}{10}$$

Tāpirihia te 9 ki te 200, ka 209.

$$\frac{209}{10}$$

Tauwehe

$$\frac{11 \cdot 19}{2 \cdot 5} = 20\frac{9}{10} = 20.9$$