Thirty
2/3 x 30 = 20 on a calculator
or 2/3 times ? = 20
so move the fraction to the other side,
which then turns it upside-down, making
20 x 3/2 = ? = 60/2 = 30
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two thirds times one is two thirds.
12 times
(2/3) x (2/3) x (2/3) x (2/3) = (2/3)4 = 16/81
Six times a third equals two, and you have two thirds left over.
negative two-thirds