6 1/3 = 18/3 x 10 one must use the rules of multiplication of fractions, which is the easiest for me, because you just multiply the top and bottom, unlike addition and subtraction, where the bottom or denominator must be the same. Thus one multiplies the top and bottom (the bottom below the 10 being 1, remember 10 divided by 1 = 10 thus 18/3 x 10/1 = 180/3 = 60. 60 is the answer.