An 8 and 3/4 foot board must be shortened to 6 and 1/3 ft. How much must be removed?

Answer 1

Let's start by making things simple by converting feet to inches

We know that there are 12 inches in 1 foot

So an 8 and 3/4 foot board will be 8 x 12 + 3/4 x 12 = 96 + 9 = 105 inches

Next, a 6 and 1/3 foot board will be 6 x 12 + 1/3 x 12 = 72 + 4 = 76 inches

The difference between theses 2 will equal the amount to be removed in inches

So 105 minus 76 equals 29 inches

So to answer the question 29 inches or 29/12 feet (2 and 5/12 feett) must be removed.