Whakaoti mō w
w=10
Tohaina
Kua tāruatia ki te papatopenga
w=4\times \frac{5}{2}
Me whakarea ngā taha e rua ki te \frac{5}{2}, te tau utu o \frac{2}{5}.
w=\frac{4\times 5}{2}
Tuhia te 4\times \frac{5}{2} hei hautanga kotahi.
w=\frac{20}{2}
Whakareatia te 4 ki te 5, ka 20.
w=10
Whakawehea te 20 ki te 2, kia riro ko 10.
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