Whakaoti i te 10-7div21-18=1

$$10 - 7 \div 21 - 18 = 1$$

Manatoko

Ngā Upane Otinga

Whakahekea te hautanga \frac{7}{21} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 7.

$$10-\frac{1}{3}-18=1$$

Me tahuri te 10 ki te hautau \frac{30}{3}.

$$\frac{30}{3}-\frac{1}{3}-18=1$$

Tā te mea he rite te tauraro o \frac{30}{3} me \frac{1}{3}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{30-1}{3}-18=1$$

Tangohia te 1 i te 30, ka 29.

$$\frac{29}{3}-18=1$$

Me tahuri te 18 ki te hautau \frac{54}{3}.

$$\frac{29}{3}-\frac{54}{3}=1$$

Tā te mea he rite te tauraro o \frac{29}{3} me \frac{54}{3}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{29-54}{3}=1$$

Tangohia te 54 i te 29, ka -25.

$$-\frac{25}{3}=1$$

Me tahuri te 1 ki te hautau \frac{3}{3}.

$$-\frac{25}{3}=\frac{3}{3}$$

Whakatauritea te -\frac{25}{3} me te \frac{3}{3}.

$$\text{false}$$