Operations with Fractions and Multiples

This video tutorial reviews operations with fractions, including addition, subtraction, multiplication, and division. It emphasizes the importance of finding a common denominator for addition and subtraction, and demonstrates how to simplify fractions during multiplication and division. The tutorial also covers converting mixed numbers to improper fractions and using the order of operations.

What is the first step when adding fractions with different denominators?

• Convert to mixed numbers

• Find a common denominator

• Add the numerators directly

• Multiply the fractions

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

When subtracting fractions, why is it important to have a common denominator?

• To ensure the fractions are equivalent

• To make the numerators equal

• To simplify the fractions

• To convert them to improper fractions

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

• Multiply the whole number by the denominator and add the numerator

• Add the whole number to the numerator

• Multiply the numerator by the denominator

• Subtract the numerator from the whole number

What is the least common multiple of 5 and 6?

• 30

• 11

• 15

• 60

Tags

CCSS.5.NF.B.6

What is the result of multiplying 2/3 by 3/4?

• 1/4

• 1/2

• 1/3

• 1/6

Tags

CCSS.5.NF.B.6

Why is it beneficial to simplify fractions before multiplying?

• To reduce the number of steps in division

• To ensure the result is an improper fraction

• To avoid converting to mixed numbers

• To make the multiplication process faster

Tags

CCSS.5.NF.B.6

What is the reciprocal of 4/5?

• 5/1

• 5/4

• 1/4

• 4/1

Tags

CCSS.6.NS.A.1

How do you divide fractions?

• Find a common denominator and subtract

• Multiply the numerators and denominators

• Multiply by the reciprocal of the second fraction

• Add the fractions directly

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

In the order of operations, which should be performed first?

• Division

• Subtraction

• Multiplication

• Addition

What is the least common multiple of 2 and 5?

• 7

• 10

• 15

• 5