Understanding Fractions and Common Denominators

The video tutorial explains how to handle arithmetic operations involving numbers in different formats: decimal, fractions, and percentage. It demonstrates converting all numbers to fractions to simplify calculations, finding a common denominator, and performing the necessary arithmetic operations. The final result is presented in its simplest fractional form.

What are the different formats of numbers mentioned in the problem?

• Integer, fraction, percentage

• Decimal, fraction, percentage

• Decimal, integer, percentage

• Fraction, integer, decimal

Tags

CCSS.5.NF.B.5B

Why is it beneficial to convert all numbers to fractions in this problem?

• Fractions are easier to add

• Fractions avoid repeating decimals

• Fractions are easier to compare

• Fractions are simpler to multiply

What is the least common multiple of 100, 3, and 2?

• 100

• 150

• 200

• 300

How do you convert 0.79 to a fraction with a denominator of 300?

• Multiply numerator and denominator by 100

• Multiply numerator and denominator by 3

• Multiply numerator and denominator by 150

• Multiply numerator and denominator by 2

What is the fraction equivalent of 150%?

• 150/300

• 3/2

• 1.5

• 150/100

Tags

CCSS.7.NS.A.1C

What operation is performed after converting all numbers to have a common denominator?

• Both addition and subtraction

• Addition

• Multiplication

• Subtraction

Tags

CCSS.3.OA.D.8

What is the result of subtracting 550 from the sum of 237 and 450?

• 137

• 237

• 450

• 550

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the final simplified fraction obtained in the problem?

• 450/300

• 237/300

• 137/300

• 550/300

Tags

CCSS.7.NS.A.1C

Why is it important to find a common denominator when adding or subtracting fractions?

• To make the fractions larger

• To convert fractions to decimals

• To ensure the fractions have the same base for calculation

• To simplify the fractions

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

What is the purpose of multiplying both the numerator and denominator by the same number when converting fractions?

• To convert the fraction to a percentage

• To make the fraction smaller

• To keep the fraction equivalent

• To change the value of the fraction

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1