Ruth baked a big cake to sell during the school fair. She cut the cake into many equal pieces. She sold two- thirds of the pieces. She gave half of the remaining pieces to her friends. She then had 6 pieces left to bring home. Into how many pieces did she cut the cake?

Answer 1

2/3 + (1/2)(1/3) = 5/6
So, 1/6 of the original number is 6

Answer 2

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