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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

\frac{21}{70}-\frac{10}{70}
Ko te maha noa iti rawa atu o 10 me 7 ko 70. Me tahuri \frac{3}{10} me \frac{1}{7} ki te hautau me te tautūnga 70.
\frac{21-10}{70}
Tā te mea he rite te tauraro o \frac{21}{70} me \frac{10}{70}, me tango rāua mā te tango i ō raua taurunga.
\frac{11}{70}
Tangohia te 10 i te 21, ka 11.