Adding/Subtracting Fractions
When adding fractions
with variables in one or more denominators, the LCD will have each variable (or
algebraic expression) to its highest power as a factor. For example, the LCD
for 
.
Practice
Solutions
This property says that a-1 is the reciprocal of a. In other words, a-1 means ‘‘invert a’’.
Examples
Labels:
Mathematician
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