Answer :

AL2006
1 whole thing = 6 sixths
3 whole things = 18 sixths

1 third of a whole thing = 2 sixths of it

3 wholes plus 1 third = 18 sixths plus 2 sixths = 20 sixths
Change 3 1/3 to improper fraction which equals 10/3. Then multiply numerator and denominator by 2
10/3 = 20/6, so there are 20 sixths in 3 and 1 third.

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