G5 Fractions

Add.

 $\ \frac{1}{7}+\frac{3}{7}+\frac{4}{7}\ =$  

Find the sum.

 $\frac{1}{2}+\frac{3}{8}$  

What is the least common denominator of  $\frac{3}{10}\ and\ \frac{7}{15}?$ 

Subtract.

Add. Simplify, if necessary.

 $\frac{5}{9}+\frac{1}{9}$  

(a)  

Subtract. Simplify, if necessary.

 $\frac{9}{10}-\frac{3}{4}$  

(a)  

Which fraction shows the difference  $\frac{7}{12}-\frac{1}{4}$  in simplest form?

Which number is NOT a common denominator of  $\frac{5}{6}\ and\ \frac{5}{9}$  ?

To find the least common denominator of fractions, I need to:

Fill in the blank:

The LCD for  $\frac{11}{12\ }\ and\ \frac{5}{9}$  is (a)   .