Whakaoti mō S
S=324
Tohaina
Kua tāruatia ki te papatopenga
\frac{2}{3}S=216
Whakareatia te \frac{1}{3} ki te 2, ka \frac{2}{3}.
S=216\times \frac{3}{2}
Me whakarea ngā taha e rua ki te \frac{3}{2}, te tau utu o \frac{2}{3}.
S=\frac{216\times 3}{2}
Tuhia te 216\times \frac{3}{2} hei hautanga kotahi.
S=\frac{648}{2}
Whakareatia te 216 ki te 3, ka 648.
S=324
Whakawehea te 648 ki te 2, kia riro ko 324.
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