# How to add fractions

Adding fractions. Learn **how to add fractions !** The first rule of **addition** is that numbers, **fractions**, can be added only as quantities, for example various quantities of fifths. Unlike quantities such as **adding** thirds to fifths must be first converted as quantities, as described in our example below.

### How to add fractions with different denominators

Now we will show **how to add fractions** that contains unlike quantities, it is necessary to convert all amounts to be as quantities. It is easy work, just simply multiply together the two denominators of each fraction. In our example we will show how to add quarters to thirds, both types **of fraction** are converted to twelfths.

### ∗ **How to add fractions** online ?

Check your own fraction calculations and practice online with this fractions calculator