Whakaoti i te 1,2/0,22=x/1,3

$$\frac { 1,2 } { 0,22 } = \frac { x } { 1,3 }$$

Whakaoti mō x

$$x = \frac{78}{11} = 7\frac{1}{11} \approx 7.090909091$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakarohaina te \frac{1.2}{0.22} mā te whakarea i te taurunga me te tauraro ki te 100.

$$\frac{120}{22}=\frac{x}{1.3}$$

Whakahekea te hautanga \frac{120}{22} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\frac{60}{11}=\frac{x}{1.3}$$

Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.

$$\frac{x}{1.3}=\frac{60}{11}$$

Me whakarea ngā taha e rua ki te 1.3.

$$x=\frac{60}{11}\times 1.3$$

Me tahuri ki tau ā-ira 1.3 ki te hautau \frac{13}{10}.

$$x=\frac{60}{11}\times \frac{13}{10}$$

Me whakarea te \frac{60}{11} ki te \frac{13}{10} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$x=\frac{60\times 13}{11\times 10}$$

Mahia ngā whakarea i roto i te hautanga \frac{60\times 13}{11\times 10}.

$$x=\frac{780}{110}$$

Whakahekea te hautanga \frac{780}{110} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 10.

$$x=\frac{78}{11}$$