Whakaoti i te 30/210:35/210:42/210

$$\frac { 30 } { 210 } : \frac { 35 } { 210 } : \frac { 42 } { 210 }$$

Aromātai

$$\frac{30}{7}\approx 4.285714286$$

Ngā Upane Otinga

Whakawehe \frac{\frac{30}{210}}{\frac{35}{210}} ki te \frac{42}{210} mā te whakarea \frac{\frac{30}{210}}{\frac{35}{210}} ki te tau huripoki o \frac{42}{210}.

$$\frac{\frac{30}{210}\times 210}{\frac{35}{210}\times 42}$$

Whakahekea te hautanga \frac{30}{210} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 30.

$$\frac{\frac{1}{7}\times 210}{\frac{35}{210}\times 42}$$

Whakareatia te \frac{1}{7} ki te 210, ka \frac{210}{7}.

$$\frac{\frac{210}{7}}{\frac{35}{210}\times 42}$$

Whakawehea te 210 ki te 7, kia riro ko 30.

$$\frac{30}{\frac{35}{210}\times 42}$$

Whakahekea te hautanga \frac{35}{210} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 35.

$$\frac{30}{\frac{1}{6}\times 42}$$

Whakareatia te \frac{1}{6} ki te 42, ka \frac{42}{6}.

$$\frac{30}{\frac{42}{6}}$$

Whakawehea te 42 ki te 6, kia riro ko 7.

$$\frac{30}{7}$$

Tauwehe

$$\frac{2 \cdot 3 \cdot 5}{7} = 4\frac{2}{7} = 4.285714285714286$$