Exploring Adding and Subtracting Rational Expressions

The video tutorial guides students through solving a multiplication problem using fractions. It begins with setting up the problem using a generic rectangle, followed by detailed steps on multiplying whole numbers and fractions. The tutorial emphasizes calculating products for each section of the rectangle and concludes with adding these products using common denominators.

What is the first step in setting up the problem using the generic rectangle?

• Set up the dimensions of the rectangle

• Identify the fractions to be multiplied

• Multiply the whole numbers

• Place the mixed numbers on the sides

Tags

CCSS.5.NF.B.6

How do you place the numbers in the generic rectangle for multiplication?

• Fractions in larger boxes, whole numbers in smaller boxes

• Whole numbers first, then fractions

• Randomly place the numbers

• Only whole numbers are used

Tags

CCSS.5.NF.B.6

What is the product of 2 and 4 in the context of this problem?

• 4

• 2

• 6

• 8

Tags

CCSS.3.OA.A.3

What does one-third times four equal in fractional form?

• 12

• 4/3

• 3/4

• 1/12

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

How is the multiplication of fractions different from whole numbers in this method?

• It requires conversion to whole numbers first

• It is performed in the same way

• It requires a different setup in the rectangle

• It uses subtraction instead of multiplication

Tags

CCSS.5.NF.B.6

What operation is performed after multiplying the numbers in each box?

• Subtraction

• None

• Division

• Addition

Tags

CCSS.6.EE.A.2C

What is necessary when adding the products in this problem?

• A common denominator

• No commonality needed

• A common multiplier

• A common numerator

Tags

CCSS.HSA.APR.D.7

What is the final step after adding all the products together?

• Convert the answer to a decimal

• Simplify the fraction

• Check the multiplication steps

• Prepare for the next problem

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C