Adding and subtracting rational expressions pop quiz

Whatever you do in the denominator you have to do in the __________?

• LCD

• Parenthesis

• Numerator

• Radical

Tags

CCSS.HSA.APR.D.6

In algebra What does LCD stand for

• Liquid crystal display

• least common denominator

• Last common denominator

• Last combined divisor

Tags

CCSS.HSA.REI.A.2

How do we determine what the LCD is?

• Take the least combined divisor from all of then

• You add all of the fractions together, even with different denominators

• Do the opposite and find the biggest form of the expression

• The smallest number that both of the denominators divide into

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

To add and subtract rational expressions we need to make sure we have common _____________?

• Denominators

• Multiples

• Exponents

• Lines

Tags

CCSS.HSA.APR.D.7