Whakaoti mō d
d=\frac{9}{31}\approx 0.290322581
Tohaina
Kua tāruatia ki te papatopenga
2d-9+29d=0
Me tāpiri te 29d ki ngā taha e rua.
31d-9=0
Pahekotia te 2d me 29d, ka 31d.
31d=9
Me tāpiri te 9 ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
d=\frac{9}{31}
Whakawehea ngā taha e rua ki te 31.
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