The cool thing about knowing how to label the fractions inside of an inch is that you can use it as a calculator to reduce fractions! Follow along and I'll show you how. This instructable may be a little hard to follow if you don't read it through all the way to the end before trying it out.

**Signing Up**

## Step 1: Start your Inches!

*Picture 1*. You need:

Paper

Pencil or Pen

That's it!

A few definitions that might help you understand this instructable a little better:

**Numerato**r: The number above the line in a common fraction

**Denominator**: The number below the line in a common fraction

The easiest way I have found to explain an inch is to draw it out, starting with a mark representing zero and a mark representing 1. These DO NOT HAVE TO BE ACCURATE!!! I find it is a lot easier if you make your "inch" BIG to give you more room to write in the fractions. SO:

On the paper, Draw a rectangle as shown in

*Picture 2 and 3*. This is going to be our "ruler". Remember to make it big! On the ruler, make a mark, also as shown in

*Pictures 2, 3, and 4*. This will be out 1 inch mark.

Wow! How cool is this. Every everybody should know this little trick. This has taught me how to read a ruler and I do not think I will forget it. Thank you soooo much for sharing this.

Thanks! Glad it could help. I've wondered who views this instructable- There are hardly any comments yet it has over 100k views. Would love to hear how (if?) others are using this in some way?

Why not simply jump to the metric ???