Multiplication, Division, Addition, and Subtraction of Rational
Expressions
Across
5. Two numbers, that when multiplied together give the result of 1, are called this.
8. When adding or subtracting rational expressions, factoring is important in finding the
least common _____.
Down
1. To add two like fractions, just add the _____ and place the result over the common
denominator.
2. This is the last step after adding or subtracting two fractions.
3. This is the smallest quantity that is divisible by every single denominator in a rational
expression.
4. The first step in finding the LCD is _____.
2
6. When adding the fractions 7  , we write 7 as a fraction of a denominator of _____
x
and then we change that fraction to an equivalent fraction with the LCD which is x.
7. When changing a fraction to an equivalent fraction with the LCD, you must multiply
both numerator and denominator by the _____ factor(s).
Authored by Kamilia Nemri
Spokane Community College
Multiplication, Division, Addition, and Subtraction of Rational
Expressions
Across
5. Reciprocal
8. Denominator
Down
1. Numerators
2. Reducing
3. LCD
4. Factoring
6. One
7. Same
Authored by Kamilia Nemri
Spokane Community College