Operations with Fractions and Mixed Numbers

This video tutorial reviews the addition and subtraction of fractions and mixed numbers. It emphasizes the importance of finding a common denominator and provides step-by-step examples for adding and subtracting fractions, including mixed numbers and whole numbers. The tutorial also discusses alternative methods for finding common denominators and simplifying results.

What is the first step when adding or subtracting fractions?

• Multiply the fractions

• Convert to decimals

• Find a common denominator

• Find a common numerator

In the example of adding 1/2 and 1/3, what is the common denominator used?

• 2

• 5

• 3

• 6

Tags

CCSS.7.NS.A.1C

When subtracting 11/15 and 5/12, what is the least common denominator?

• 60

• 75

• 45

• 30

Tags

CCSS.7.NS.A.1C

What is the result of subtracting 11/15 from 5/12 using the least common denominator?

• 25/60

• 19/60

• 60/60

• 44/60

What is an alternative common denominator for 11/15 and 5/12 if the least common multiple is not used?

• 150

• 120

• 90

• 180

Tags

CCSS.7.EE.B.3

How can you verify the result of a fraction operation using a calculator?

• By converting to decimals

• By multiplying the fractions

• By using the graphing function

• By using the math function to convert to fractions

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the first step when dealing with mixed numbers in fraction operations?

• Multiply the fractions

• Find a common denominator

• Convert to improper fractions

• Simplify the fractions

Tags

CCSS.7.NS.A.1C

In the example of 4 and 3/5 minus 1 and 5/6, what is the common denominator used?

• 60

• 30

• 6

• 5

What is the improper fraction form of 4 and 3/5?

• 15/5

• 18/5

• 23/5

• 20/5

Tags

CCSS.7.NS.A.1C

What is the simplified result of 2 over 1 minus 8/5?

• 4/5

• 3/5

• 5/5

• 2/5

Tags

CCSS.7.NS.A.1C