Whakaoti i te 0.25div(2/3-11/4)=

$$0.25 \div ( \frac { 2 } { 3 } - 1 \frac { 1 } { 4 } ) =$$

Aromātai

$$-\frac{3}{7}\approx -0.428571429$$

Ngā Upane Otinga

Whakareatia te 1 ki te 4, ka 4.

$$\frac{0.25}{\frac{2}{3}-\frac{4+1}{4}}$$

Tāpirihia te 4 ki te 1, ka 5.

$$\frac{0.25}{\frac{2}{3}-\frac{5}{4}}$$

Ko te maha noa iti rawa atu o 3 me 4 ko 12. Me tahuri \frac{2}{3} me \frac{5}{4} ki te hautau me te tautūnga 12.

$$\frac{0.25}{\frac{8}{12}-\frac{15}{12}}$$

Tā te mea he rite te tauraro o \frac{8}{12} me \frac{15}{12}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{0.25}{\frac{8-15}{12}}$$

Tangohia te 15 i te 8, ka -7.

$$\frac{0.25}{-\frac{7}{12}}$$

Whakawehe 0.25 ki te -\frac{7}{12} mā te whakarea 0.25 ki te tau huripoki o -\frac{7}{12}.

$$0.25\left(-\frac{12}{7}\right)$$

Me tahuri ki tau ā-ira 0.25 ki te hautau \frac{25}{100}. Whakahekea te hautanga \frac{25}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 25.

$$\frac{1}{4}\left(-\frac{12}{7}\right)$$

Me whakarea te \frac{1}{4} ki te -\frac{12}{7} mā te whakarea taurunga ki te taurunga me te tauraro ki te tauraro.

$$\frac{1\left(-12\right)}{4\times 7}$$

Mahia ngā whakarea i roto i te hautanga \frac{1\left(-12\right)}{4\times 7}.

$$\frac{-12}{28}$$

Whakahekea te hautanga \frac{-12}{28} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.

$$-\frac{3}{7}$$

Tauwehe

$$-\frac{3}{7} = -0.42857142857142855$$