11/18-1/3=

To subtract these fractions, we need to have a common denominator:

11/18 - 1/3

We can convert 1/3 to a fraction with a denominator of 18:

1/3 = 6/18

Now we can subtract the fractions:

11/18 - 6/18 = 5/18

So, 11/18 - 1/3 = 5/18.