Whakaoti mō v
v=\frac{7}{15}\approx 0.466666667
Tohaina
Kua tāruatia ki te papatopenga
v=-\frac{1}{3}+\frac{4}{5}
Me tāpiri te \frac{4}{5} ki ngā taha e rua.
v=-\frac{5}{15}+\frac{12}{15}
Ko te maha noa iti rawa atu o 3 me 5 ko 15. Me tahuri -\frac{1}{3} me \frac{4}{5} ki te hautau me te tautūnga 15.
v=\frac{-5+12}{15}
Tā te mea he rite te tauraro o -\frac{5}{15} me \frac{12}{15}, me tāpiri rāua mā te tāpiri i ō raua taurunga.
v=\frac{7}{15}
Tāpirihia te -5 ki te 12, ka 7.
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