Adding Fractions and Mixed Numbers: Key Concepts and Techniques

What must be true about the denominators when adding fractions?

• They must be even numbers.

• They must be prime numbers.

• They must be the same.

• They must be different.

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

• Add the numerator and the denominator.

• Divide the numerator by the denominator.

• Subtract the denominator from the numerator.

• Multiply the numerator by the denominator.

What is the simplified form of the fraction 6/8?

• 3/4

• 3/5

• 1/2

• 2/3

If both the numerator and the denominator of a fraction are even, what can you divide them by to simplify the fraction?

• 10

• 2

• 3

• 5

When adding fractions with different denominators, what is the first step?

• Add the numerators directly.

• Find a common denominator.

• Subtract the denominators.

• Multiply the numerators.

What is the common denominator for the fractions 1/2 and 1/3?

• 2

• 5

• 3

• 6

When adding mixed numbers with the same denominator, what should you do first?

• Divide the fractions and then add the whole numbers.

• Subtract the fractions and then add the whole numbers.

• Add the whole numbers and then the fractions.

• Multiply the whole numbers and then add the fractions.

How do you handle an improper fraction result when adding mixed numbers?

• Multiply the whole number part.

• Subtract the whole number part.

• Convert it to a mixed number.

• Leave it as it is.

What is the common denominator for the mixed numbers 7 3/4 and 2 1/6?

• 12

• 4

• 6

• 24

What is the simplified form of the mixed number 16 8/12?

• 16 3/4

• 16 1/2

• 16 2/3

• 16 1/4