2/3 divided by 1/3 = 2/3 x 3/1 = 6/3 = 2 Also, you have two thirds, and one third. You have twice as many thirds in the two thirds than in the one third.

5 divided by 2 thirds=7 1/2 15/2. Division of fractions is like multiplication, but you find the reciprocal (found by flipping the number) of the number you are dividing, then multiply like fractoins giving you 15/2.