Exploring Adding and Subtracting Rational Expressions

This video tutorial covers the process of adding and subtracting fractions with like denominators. It begins with an introduction to the basic steps, including converting mixed numbers to improper fractions, adding or subtracting numerators, and simplifying results. The tutorial provides several examples, demonstrating both addition and subtraction of fractions, and includes real-world application problems to reinforce the concepts. The video concludes with a summary of the key points and emphasizes the importance of labeling answers in word problems.

What is the first step in adding or subtracting fractions with like denominators?

• Add or subtract the denominators

• Convert mixed numbers to improper fractions

• Multiply the numerators

• Simplify the fractions first

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

When adding fractions with the same denominator, what should remain unchanged?

• None of the above

• Both numerators and denominators

• The denominators

• The numerators

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

How do you simplify the fraction 10/20?

• Divide by 5

• Divide by 10

• Multiply by 2

• Add 10

What is the result of 13/16 minus 1/16?

• 12/16

• 12/32

• 1/16

• 14/16

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

How is 12/16 simplified?

• 4/8

• 3/4

• 3/8

• 6/8

What is the mixed number form of 12/5?

• 2 3/5

• 3 1/5

• 2 1/5

• 2 2/5

After subtracting two fractions with like denominators, what is the next step?

• Multiply the denominators

• Add the fractions

• Simplify the fraction

• Convert to a mixed number

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the combined weight of two cats if one weighs 12 5/9 lbs and the other 16 7/9 lbs?

• 29 lbs

• 28 12/9 lbs

• 28 2/3 lbs

• 29 1/3 lbs

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

How much more did it rain in May than in April if May had 3 1/15 inches and April had 2 7/15 inches?

• 1 inch

• 1/15 inches

• 3/5 inches

• 1 6/15 inches

Tags

CCSS.7.NS.A.1C

What is the simplified form of 9/15?

• 3/5

• 1/2

• 6/10

• 2/5