8.Jaką liczbę należy dodać do liczby 2 5\6 aby otrzymać 6 2\9 ?
A)3 11\18
B)9 1\18
C)3 7\18
D)4 11\18
6 2/9 - 2 5/6 =56/9 - 17/6 =112/18 - 51/18 =61/18 =3 7/18
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6 2/9 - 2 5/6 =56/9 - 17/6 =112/18 - 51/18 =61/18 =3 7/18