Whakaoti i te 2/5*25/20*8/5=?

$$\frac { 2 } { 5 } \times \frac { 25 } { 20 } \times \frac { 8 } { 5 } = ?$$

Aromātai

$$\frac{4}{5}=0.8$$

Ngā Upane Otinga

Whakahekea te hautanga \frac{25}{20} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.

$$\frac{2}{5}\times \frac{5}{4}\times \frac{8}{5}$$

Me whakarea te \frac{2}{5} ki te \frac{5}{4} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{2\times 5}{5\times 4}\times \frac{8}{5}$$

Me whakakore tahi te 5 i te taurunga me te tauraro.

$$\frac{2}{4}\times \frac{8}{5}$$

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

$$\frac{1}{2}\times \frac{8}{5}$$

Me whakarea te \frac{1}{2} ki te \frac{8}{5} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{1\times 8}{2\times 5}$$

Mahia ngā whakarea i roto i te hautanga \frac{1\times 8}{2\times 5}.

$$\frac{8}{10}$$

Whakahekea te hautanga \frac{8}{10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$\frac{4}{5}$$

Tauwehe

$$\frac{2 ^ {2}}{5} = 0.8$$