Adding and Comparing Fractions

The video tutorial reviews adding and subtracting fractions with the same denominator, then addresses the challenge of adding fractions with different denominators. It introduces the concept of least common multiples to find a common denominator and explains how to create equivalent fractions to facilitate addition. The tutorial provides a step-by-step guide to converting fractions to have a common denominator and demonstrates the process of adding these fractions.

What is the result of adding 1/5 and 2/5?

• 4/5

• 1/5

• 3/5

• 2/5

When adding fractions with the same denominator, what do you do with the numerators?

• Add them

• Subtract them

• Multiply them

• Divide them

Why can't you directly add fractions with different denominators?

• They are already simplified

• They have different numerators

• They are not fractions

• They represent different parts of a whole

What is the least common multiple of 3 and 5?

• 20

• 15

• 10

• 25

What is the purpose of finding a least common denominator?

• To divide fractions

• To simplify fractions

• To multiply fractions

• To add fractions with different denominators

What is the least common multiple of 4 and 6?

• 12

• 18

• 24

• 30

What is the least common multiple of 2 and 5?

• 10

• 15

• 25

• 20

How do you create an equivalent fraction with a new denominator?

• Subtract the same number from the numerator and denominator

• Add the same number to the numerator and denominator

• Divide the numerator and denominator by the same number

• Multiply the numerator and denominator by the same number

If you have a fraction 1/5, what do you multiply the numerator and denominator by to get a denominator of 15?

• 2

• 3

• 4

• 5

What is the equivalent fraction of 1/3 with a denominator of 15?

• 2/15

• 1/15

• 5/15

• 3/15