Do 1* 2/3 first. that's 2/3. Then we have to subtract 2/3-1/2.
To do this we have to make sure the denominators are the same number. In this case it will have to be a multiple of 3 and 2- the easiest one being 6.
Start with 2/3. Multiply both the top and bottom of this fraction by 2. You get 4/6.
The 1/2. Multiply the top and bottom of this fraction by 3. You get 3/6.
Now you can subtract 4/6 - 3/6. You only subtract the tops of the fractions, so you'd get 1/6. The answer is 1/6.
