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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

-\frac{14}{21}-\frac{18}{21}
Ko te maha noa iti rawa atu o 3 me 7 ko 21. Me tahuri -\frac{2}{3} me \frac{6}{7} ki te hautau me te tautūnga 21.
\frac{-14-18}{21}
Tā te mea he rite te tauraro o -\frac{14}{21} me \frac{18}{21}, me tango rāua mā te tango i ō raua taurunga.
-\frac{32}{21}
Tangohia te 18 i te -14, ka -32.