You will notice a recurring theme as each shorter line takes its place between the values on either side and the denominator ...

Have you ever wondered what the hash marks, black diamonds, and red squares on a tape measure mean? We'll help crack the code ...

Firstly, he pointed out a number on the back or side of the tape measure, explaining: "There's a number on the back or the side of your tape measure. In this case it's three and a half inches ...