This how-to video shows you how to use the text substitution feature in Mac OSX. This will make it easier for you to type symbols and fractions. It can also be used to create shortcuts for texts that you use on a regular basis. Go to apple and system preferences. Click language and text and select the text tab. You will see some substitutions already created. To add a substitution, click add and type the text you want to replace. Press tab to add the text you want to replace it with. Save this and test it out. This video shows you how easy an convenient it is to create and use substitutions.