Add and Subtract Rational Expressions Combine Like Terms

Add

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CCSS.HSA.APR.D.7

Add

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CCSS.HSA.APR.D.7

Subtract

• Cannot be subtracted

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CCSS.HSA.APR.D.7

Subtract

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CCSS.HSA.APR.D.7

Subtract

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CCSS.HSA.APR.D.7

What is the first step in adding or subtracting expressions with unlike bases?

• Make the denominators the same by finding the LCD

• Combine like terms

• Simplify each expression separately

• Multiply the numerators

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CCSS.HSA.APR.D.7

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.

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CCSS.HSA.APR.D.7

To add or subtract rational expressions we must have a _____________:

• greatest common factor

• common denominator

• calculator

• proportion

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CCSS.HSA.APR.D.7

Simplify: \(\frac{5}{6x}-\frac{\left(2x-5\right)}{3x^2}\)\nWhich steps are correct?

• Find the LCD

• Multiply the second fraction by the part of the LCD that is missing: 2

• Multiply the first fraction by the part of the LCD that is missing: x

• Combine like terms

• Use the distributive property to eliminate the parenthesis.

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CCSS.HSA.APR.D.7