Exploring Adding and Subtracting Rational Expressions

This video tutorial covers the basics of fractions, including the parts of a fraction, simplifying fractions, and converting between improper fractions and mixed numbers. It also explains how to add and subtract fractions with like denominators and applies these concepts to solve real-world problems.

What is the term for the number on the top of a fraction?

• Rational number

• Numerator

• Integer

• Denominator

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

How do you remember the position of the denominator in a fraction?

• Denominator starts with D and Up starts with U

• Denominator starts with D and North starts with N

• Denominator starts with D and Down starts with D

• Denominator starts with D and Top starts with T

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What is the simplest form of the fraction 15/40?

• 1/8

• 3/5

• 3/8

• 5/8

Which of the following fractions is in simplest form?

• 9/12

• 6/8

• 3/4

• 4/10

How do you convert an improper fraction to a mixed number?

• Multiply the numerator by the denominator

• Divide the numerator by the denominator

• Add the numerator and the denominator

• Subtract the numerator from the denominator

What is the mixed number form of the improper fraction 23/4?

• 4 3/4

• 5 3/4

• 6 1/4

• 5 1/4

When adding fractions with like denominators, what should you do with the numerators?

• Divide them

• Add them

• Subtract them

• Multiply them

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the result of adding 5/12 and 7/12?

• 6/12

• 1

• 12/12

• 1/2

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Amaya has a piece of string that is 12 1/4 inches long and cuts off a piece that is 8 3/4 inches. How much string does she have left?

• 3 inches

• 2 1/2 inches

• 4 inches

• 3 1/2 inches

Tags

CCSS.7.NS.A.1C

Bill has 23 4/5 gallons of water in his aquarium and adds 18 3/5 more gallons. How much water is now in his aquarium?

• 42 1/5 gallons

• 42 2/5 gallons

• 43 gallons

• 41 3/5 gallons

Tags

CCSS.7.NS.A.1C