Adding and Subtracting rational expressions

What definition best defines an expression?

• Can have numbers (coefficients & constants)

• Can have operators ((+,-, x, ÷)

• Can have numbers (coefficients & constants), variables, operators (+,-, x, ÷), and does not have an equal sign.

• Can have numbers (coefficients & constants), variables, operators (+,-, x, ÷), and does have an equal sign.

Tags

CCSS.6.EE.A.2B

Choose all choices that are expressions.

• 4x+3

• (3n-7n)-16+12

• 5x+29=84

• 10s+4s-8s

Tags

CCSS.6.EE.A.2B

Which definition best defines an equation?

• Includes an equal sign (=).

• Does not include an equal sign (=)

• Can have two terms being compared to one another; it can determine whether two terms are equivalent.

• Can have two expressions being compared to one another; it can determine whether two expressions are equivalent; it includes the equal sign (=).

Tags

CCSS.7.EE.A.2

CCSS.HSA.SSE.A.2

Simplify the following expression.

6w + (-5w)

• w

• -w

• 11w

• -11w

Tags

CCSS.7.EE.A.1

When adding and subtracting rational expressions, my first step should be to:

• Combine like terms in the numerators.
• Determine a Least Common Denominator.
• Factor all of the numerators and all of the denominators.
• Change the operator to multiplication and reciprocate the second fraction.

Tags

CCSS.HSA.APR.D.7

Find the least common denominator of the expression

• 18
• 6x
• 3xy
• 6xy

Tags

CCSS.HSA.APR.D.7

Bob has factored the denominators and made sure there is a common denominator.  He must be...

• Adding or Subtracting Rational Expressions
• Multiplying Rational Expressions
• Dividing Rational Expressions

Tags

CCSS.HSA.APR.D.7

Simplify the expression

• 6x / 20xy
• 3 / 10y
• (6x+1) / (20xy)
• 3 / 20xy

Tags

CCSS.HSA.APR.D.7

What is the main difference between expressions and equations?

• Equations use an equal sign (=) to separate and determine whether two expressions are equivalent and expressions do not.

• Equations have coefficients and variables and expressions do not.

• Equations can be simplified and expressions can not.

• Expressions only contain numbers and operators (+,-,x,÷) and equations do not.

Simplify the expression

• n / 2m 
• n / 3m 
• (m² + 4n²) / 12m
• n / 4m 

Tags

CCSS.HSA.APR.D.7