5.3H Adding & Subtracting Fractions unlike denominators

When fractions have the same denominator they are like fractions.

You can add or subtract fractions when you have like fractions.

Unlike fractions have different denominators.

Adding or subtracting unlike fractions isn't that different from adding or subtracting like fractions. You just have to find what their denominator have in common.

 $\frac{2}{3},\ \frac{3}{4},\frac{5}{6},\ \frac{5}{8}$  

 $\frac{2}{5}+\frac{5}{7}=$  

Find a common denominator 
 $\frac{2}{5}$  =                                                                      

 $\frac{5}{7}$ =                                                                      

 $\frac{2}{5}+\frac{5}{7}=$  

NEXT.........

We're going to split into groups and continue to practice our skills.