Whakaoti i te -3/7*3/6*(-4.5)*20

$$- \frac { 3 } { 7 } \times \frac { 3 } { 6 } \times ( - 4.5 ) \times 20$$

Aromātai

$$\frac{135}{7}\approx 19.285714286$$

Ngā Upane Otinga

Whakahekea te hautanga \frac{3}{6} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$-\frac{3}{7}\times \frac{1}{2}\left(-4.5\right)\times 20$$

Me whakarea te -\frac{3}{7} ki te \frac{1}{2} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{-3}{7\times 2}\left(-4.5\right)\times 20$$

Mahia ngā whakarea i roto i te hautanga \frac{-3}{7\times 2}.

$$\frac{-3}{14}\left(-4.5\right)\times 20$$

Ka taea te hautanga \frac{-3}{14} te tuhi anō ko -\frac{3}{14} mā te tango i te tohu tōraro.

$$-\frac{3}{14}\left(-4.5\right)\times 20$$

Me tahuri ki tau ā-ira -4.5 ki te hautau -\frac{45}{10}. Whakahekea te hautanga -\frac{45}{10} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 5.

$$-\frac{3}{14}\left(-\frac{9}{2}\right)\times 20$$

Me whakarea te -\frac{3}{14} ki te -\frac{9}{2} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{-3\left(-9\right)}{14\times 2}\times 20$$

Mahia ngā whakarea i roto i te hautanga \frac{-3\left(-9\right)}{14\times 2}.

$$\frac{27}{28}\times 20$$

Tuhia te \frac{27}{28}\times 20 hei hautanga kotahi.

$$\frac{27\times 20}{28}$$

Whakareatia te 27 ki te 20, ka 540.

$$\frac{540}{28}$$

Whakahekea te hautanga \frac{540}{28} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.

$$\frac{135}{7}$$

Tauwehe

$$\frac{5 \cdot 3 ^ {3}}{7} = 19\frac{2}{7} = 19.285714285714285$$