Step 1: Multiply the second expression (that is over one) by the denominator of the first expression. You must multiply both the top and bottom by the denominator of the first expression.
Step 2: Distribute as necessary.
Step 3: Combine like terms and add across. Keep the denominator (both of which are the same) constant.
A step by step example of how to add terms when the second expression is over one.
Step 1: Find your LCD, including all terms from the bottom of both expressions
Step 2: Manipulate both expressions to make the bottom equal the LCD
Step 3: Distribute as necessary
Step 4: Add by combining like terms
Step-by-step example of how to add two rational expressions, when the second term is not over one.
Another example, not unlike the one above.
