We learned more ways to add fractions and to solve problems that involve adding, subtracting, and multiplying fractions.

We started by adding tenths and hundredths, using what we know about equivalent fractions. For example, to find the sum of and , we can:

• Write  as , and then find , or
• Write  as , and then find .

We learned that when adding a few fractions, it may help to rearrange or group them. Example:

• can be rearranged as .
• Next, the hundredths can be added first, giving .
• Then we can write an equivalent fraction for  and find  , or write an equivalent fraction for  and find  .