When you see the word 'of' in math it usually means you need to multiply. For example, 1/2 of 4 is equal to (.5 or 1/2) times (4) = 2. Or 3/4ths of 1/2 is equal to (3/4) times (1/2) = (3/8) or (.75) times (.5) = .38

There are 0.0254 metres in one inch. There are 12 inches in one foot. Therefore, 38 feet 3 inches is equal to (38 x 12 x 0.0254) + (3 x 0.0254) = 11.6586 metres.