Whakaoti mō B
B=15
Tohaina
Kua tāruatia ki te papatopenga
75=\frac{10}{2}B
Whakareatia te \frac{1}{2} ki te 10, ka \frac{10}{2}.
75=5B
Whakawehea te 10 ki te 2, kia riro ko 5.
5B=75
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
B=\frac{75}{5}
Whakawehea ngā taha e rua ki te 5.
B=15
Whakawehea te 75 ki te 5, kia riro ko 15.
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