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Fractions
Identify fractions
 Identify rational and irrational numbers
 Equivalent Fractions
Simplifying (Reducing) Fractions

Reducing to the Least Common Denominator

Comparing fractions

Round fractions and mixed numbers
Absolute value of rational numbers
 Reciprocals

Adding and subtracting fractions

Multiply fractions

Divide fractions

Multiple Operations

Worksheet
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Adding and subtracting fractions
Adding and subtracting fractions with the same denominator
You can add and subtract like fractions easily  simply add or subtract the numerators and write the sum over the common denominator.
Adding and subtracting fractions with different denominator
Before you can add or subtract fractions with different denominators, you must first find equivalent fractions with the same denominator, like this:
Find the smallest multiple (LCM) of both numbers.
Rewrite the fractions as equivalent fractions with the LCM as the denominator.
Calculate:
Solution (reduce the result):