Evaluate x over y for x = two-thirds and y = five-sixths.

To evaluate x over y, we divide the value of x by the value of y.

Given:
x = two-thirds
y = five-sixths

To convert "two-thirds" into decimal form, we divide 2 by 3:
x = 2 / 3 ≈ 0.67

To convert "five-sixths" into decimal form, we divide 5 by 6:
y = 5 / 6 ≈ 0.83

Now, we can evaluate x over y:
x / y ≈ 0.67 / 0.83

Dividing 0.67 by 0.83 gives us approximately:
x / y ≈ 0.81