A construction company has bids for paving roads of 1 1/2, 3/4 and 3 1/3 miles (mi) for

A construction company has bids for paving roads of 1 1/2, 3/4 and 3 1/3 miles (mi) for the month of July. With their present equipment , they can pave 8 mi in month. How much more work can they take on in July?