Whakaoti i te I=1/20+2/5+3/10=

$$I = \frac { 1 } { 20 } + \frac { 2 } { 5 } + \frac { 3 } { 10 } =$$

Whakaoti mō I

$$I=\frac{3}{4}=0.75$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Ko te maha noa iti rawa atu o 20 me 5 ko 20. Me tahuri \frac{1}{20} me \frac{2}{5} ki te hautau me te tautūnga 20.

$$I=\frac{1}{20}+\frac{8}{20}+\frac{3}{10}$$

Tā te mea he rite te tauraro o \frac{1}{20} me \frac{8}{20}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$I=\frac{1+8}{20}+\frac{3}{10}$$

Tāpirihia te 1 ki te 8, ka 9.

$$I=\frac{9}{20}+\frac{3}{10}$$

Ko te maha noa iti rawa atu o 20 me 10 ko 20. Me tahuri \frac{9}{20} me \frac{3}{10} ki te hautau me te tautūnga 20.

$$I=\frac{9}{20}+\frac{6}{20}$$

Tā te mea he rite te tauraro o \frac{9}{20} me \frac{6}{20}, me tāpiri rāua mā te tāpiri i ō raua taurunga.

$$I=\frac{9+6}{20}$$

Tāpirihia te 9 ki te 6, ka 15.

$$I=\frac{15}{20}$$

Whakahekea te hautanga \frac{15}{20} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.

$$I=\frac{3}{4}$$

Tautapa I

$$I≔\frac{3}{4}$$