There are two basic ways to do fractions on your iPhone calculator. Here's what you need to know to use the built-in app.

Google Calculator is an online tool offered by Google that lets you use its website to do basic math calculations such as addition and subtraction. This is convenient if you are on a business trip or ...

The iPhone, up through iOS 6, comes with a standard calculator application. When you hold your phone in portrait mode, with the home button at the bottom, then the display for the calculator shows ...