Add together the amounts she ate, and subtract that from the whole.
3/9 + 1/3 =
In order to add fractions, they must have a common denominator. The common denominator for 9 and 3 is 9. 3/9 doesn't need to change, but 1/3 does, so we will multiply it by 3/3
1/3 x 3/3 = 3/9
So now we have
3/9 + 3/9 = 6/9
Now we subtract that number from the whole candy bar.
1 - 6/9 =
But to subtract fractions they must also have a common denominator. In this case it would be 9, so we multiply 1 by 9/9
1 x 9/9 = 9/9
This gives us
9/9 - 6/9 = 3/9
So Milan has 3/9 (which is the same as 1/3) of her candy bar left.
