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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

\frac{4}{28}-\frac{21}{28}
Ko te maha noa iti rawa atu o 7 me 4 ko 28. Me tahuri \frac{1}{7} me \frac{3}{4} ki te hautau me te tautūnga 28.
\frac{4-21}{28}
Tā te mea he rite te tauraro o \frac{4}{28} me \frac{21}{28}, me tango rāua mā te tango i ō raua taurunga.
-\frac{17}{28}
Tangohia te 21 i te 4, ka -17.