Adding Fractions and Common Denominators

The video tutorial explains how to add fractions by first ensuring the denominators are the same. It demonstrates multiplying the numerator and denominator of a fraction to achieve a common denominator, then rewriting the fractions and performing the addition to find the result.

What is the initial problem discussed in the video?

• Dividing 1/9 by 1/3

• Subtracting 1/9 from 1/3

• Multiplying 1/9 by 1/3

• Adding 1/9 and 1/3

Why is it necessary to have common denominators when adding fractions?

• To convert fractions to decimals

• To make the addition process possible

• To ensure the fractions are equivalent

• To simplify the fractions

What is the first step in solving the addition of fractions problem?

• Subtract the denominators

• Add the numerators directly

• Find a common denominator

• Find a common numerator

What is the key concept to remember when adding fractions?

• Always find a common denominator

• Always add the denominators

• Always convert to decimals first

• Always subtract the numerators

What is one method to make denominators the same?

• Add the same number to both the numerator and denominator

• Multiply the numerator and denominator by different numbers

• Subtract the same number from both the numerator and denominator

• Multiply the numerator and denominator by the same number

What happens to the value of a fraction when both the numerator and denominator are multiplied by the same number?

• The value remains the same

• The value increases

• The value decreases

• The value becomes zero

How can 1/3 be converted to have a denominator of 9?

• Add 6 to the denominator

• Multiply both the numerator and denominator by 3

• Multiply both the numerator and denominator by 2

• Subtract 2 from the numerator

What is the equivalent fraction of 1/3 with a denominator of 9?

• 2/9

• 3/9

• 4/9

• 5/9

What is the denominator of the fraction 1/3 after conversion?

• 3

• 6

• 12

• 9

What is the rewritten problem with common denominators?

• 3/9 + 3/9

• 2/9 + 3/9

• 1/9 + 3/9

• 1/9 + 2/9