Adding and Subtracting Fractions with Unlike Denominators

The video tutorial covers lessons 6.1 and 6.2, focusing on using fraction bars to add and subtract fractions with unlike denominators. It begins with adding fractions with like denominators, then moves to unlike denominators, demonstrating how to find common multiples. The tutorial also explains converting improper fractions to mixed numbers and concludes with examples of subtracting fractions with different denominators.

What is the sum of 3/5 and 1/5?

• 3/10

• 2/5

• 4/5

• 8/5

To add fractions with unlike denominators, what is necessary?

• None of the above

• Subtract the numerators

• Find a common multiple of the denominators

• Multiply the denominators

What is the sum of 1/3 and 1/2 when using fraction bars?

• 5/6

• 2/5

• 3/4

• 1/6

What is the result of adding 3/4 and 1/3 using fraction bars?

• 1 1/12

• 1 1/4

• 1 1/2

• 1 1/3

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

• Replace equal parts with a whole

• Add the numerators

• Multiply the denominators

• Divide the numerator by the denominator

What is the first step in subtracting fractions with unlike denominators?

• Divide the fractions

• Subtract the numerators directly

• Find the common denominator

• Multiply the fractions

What is the difference between 3/4 and 1/2 using fraction bars?

• 1/4

• 1/2

• 2/4

• 3/8

To find the difference between two fractions with unlike denominators, you must first:

• Identify a common multiple for the denominators

• Subtract the larger denominator from the smaller one

• Divide one fraction by the other

• Add the numerators

What is the difference between 5/8 and 1/4?

• 3/8

• 1/2

• 1/4

• 2/8

When subtracting fractions and finding a common denominator, what do you use the fraction bars for?

• To visually represent the difference

• To multiply the fractions

• To divide the fractions

• None of the above