# ISEE Middle Level Math : How to add fractions

## Example Questions

### Example Question #206 : Fractions

Add:      Explanation:

Rewrite the fractions with the common denominator , and add numerators: ### Example Question #207 : Fractions

Evaluate:      Explanation:

The least common denominator of the three fractions is , so write each fraction in terms of this denominator: By order of operations, subtract, then add: ,

which is the correct result.

### Example Question #208 : Fractions      Explanation:

Rewrite each fraction with the least common denominator, which is :     ### Example Question #209 : Fractions      Explanation:

Rewrite using the least common denominator, which is ; then add numerators:    ### Example Question #210 : Fractions

Evaluate:      Explanation:

Rewrite each as an improper fraction, then as a fraction in terms of the least common denominator, which is :   Rewrite the expression, evaluate it, and rewrite the result as a mixed number: ### Example Question #411 : Concepts

Find the sum:      Explanation:

Since the denominators of the two fractions are the same, we can simply add the numerators: ### Example Question #411 : Concepts

Find the sum:      Explanation:

Since the denominators of the two fractions are the same, we can simply add the numerators: ### Example Question #413 : Concepts

Find the sum:      Explanation:

Since the denominators of the two fractions are the same, we can simply add the numerators: ### Example Question #414 : Concepts

Solve:      Explanation:

Find the least common denominator between and . In this case, it is .   ### Example Question #311 : Fractions       Answer:  