Whakaoti i te {l}{2/28=p/35}{0.9/1.5=a/10}{frac{3.6}{9}=frac{b}{0.5}}

$$\left. \begin{array} { l } { \frac { 2 } { 28 } = \frac { p } { 35 } } \\ { \frac { 0.9 } { 1.5 } = \frac { a } { 10 } } \\ { \frac { 3.6 } { 9 } = \frac { b } { 0.5 } } \end{array} \right.$$

Whakaoti mō p, a, b

$$p=2.5$$

$$a=6$$

$$b=0.2$$

Ngā Upane Otinga

Whakaarohia te whārite tuatahi. Me whakarea ngā taha e rua o te whārite ki te 140, arā, te tauraro pātahi he tino iti rawa te kitea o 28,35.

$$5\times 2=4p$$

Whakareatia te 5 ki te 2, ka 10.

$$10=4p$$

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

$$4p=10$$

Whakawehea ngā taha e rua ki te 4.

$$p=\frac{10}{4}$$

Whakahekea te hautanga \frac{10}{4} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$p=\frac{5}{2}$$

Whakaarohia te whārite tuarua. Whakareatia ngā taha e rua o te whārite ki te 10.

$$10\times \frac{0.9}{1.5}=a$$

Whakarohaina te \frac{0.9}{1.5} mā te whakarea i te taurunga me te tauraro ki te 10.

$$10\times \frac{9}{15}=a$$

Whakahekea te hautanga \frac{9}{15} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$10\times \frac{3}{5}=a$$

Whakareatia te 10 ki te \frac{3}{5}, ka 6.

$$6=a$$

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

$$a=6$$

Whakaarohia te whārite tuatoru. Whakarohaina te \frac{3.6}{9} mā te whakarea i te taurunga me te tauraro ki te 10.

$$\frac{36}{90}=\frac{b}{0.5}$$

Whakahekea te hautanga \frac{36}{90} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 18.

$$\frac{2}{5}=\frac{b}{0.5}$$

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

$$\frac{b}{0.5}=\frac{2}{5}$$

Me whakarea ngā taha e rua ki te 0.5.

$$b=\frac{2}{5}\times 0.5$$

Whakareatia te \frac{2}{5} ki te 0.5, ka \frac{1}{5}.

$$b=\frac{1}{5}$$

Kua oti te pūnaha te whakatau.

$$p=\frac{5}{2} a=6 b=\frac{1}{5}$$