Whakaoti i te 0.8-8/15div22/3

$$0.8 - \frac { 8 } { 15 } \div 2 \frac { 2 } { 3 }$$

Aromātai

$$0.6$$

Ngā Upane Otinga

Whakawehe \frac{8}{15} ki te \frac{2\times 3+2}{3} mā te whakarea \frac{8}{15} ki te tau huripoki o \frac{2\times 3+2}{3}.

$$0.8-\frac{8\times 3}{15\left(2\times 3+2\right)}$$

Me whakakore tahi te 3 i te taurunga me te tauraro.

$$0.8-\frac{8}{5\left(2+2\times 3\right)}$$

Whakareatia te 2 ki te 3, ka 6.

$$0.8-\frac{8}{5\left(2+6\right)}$$

Tāpirihia te 2 ki te 6, ka 8.

$$0.8-\frac{8}{5\times 8}$$

Whakareatia te 5 ki te 8, ka 40.

$$0.8-\frac{8}{40}$$

Whakahekea te hautanga \frac{8}{40} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 8.

$$0.8-\frac{1}{5}$$

Me tahuri ki tau ā-ira 0.8 ki te hautau \frac{8}{10}. Whakahekea te hautanga \frac{8}{10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\frac{4}{5}-\frac{1}{5}$$

Tā te mea he rite te tauraro o \frac{4}{5} me \frac{1}{5}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{4-1}{5}$$

Tangohia te 1 i te 4, ka 3.

$$\frac{3}{5}$$

Tauwehe

$$\frac{3}{5} = 0.6$$