3 2/6 -2/3 3 2/6 =20/6 You multiply 3 by the denominator then add it to the numerator to get this 20/6 -2/3 20/6=10/3 10/3-2/3=8/3 There's your answer.
The shape inside is a square - and squares have sides which are all equal. area is equal to length x width, the length is 2 and the width is 2 so it equals 4.
