What is the length of an 80-inch 2x4 expressed in feet?

To convert the length of an 80-inch 2x4 into feet, you start by recognizing that there are 12 inches in a foot. The conversion is done by dividing the total inches by 12.

When you calculate it:

80 inches ÷ 12 inches/foot = 6.6667 feet.

This decimal can be converted into a mixed number. The whole number part is 6, and the decimal part (0.6667) corresponds to two-thirds since it is close to 0.67, which is 2/3 when rounded to the nearest fraction in common usage.

Thus, 6 and 2/3 feet is the accurate representation of the length in feet. Therefore, expressing 80 inches as six and two-thirds feet is correct.