Common Denominators and Mixed Fractions

This video tutorial from Moomoomath focuses on subtracting mixed fractions by converting them into improper fractions. The instructor demonstrates three examples, explaining each step in detail, including finding a common denominator and simplifying the result. The video aims to help viewers understand and practice the process of subtracting mixed fractions effectively.

What is the first step in subtracting mixed fractions?

• Find a common denominator

• Convert them to improper fractions

• Multiply the fractions

• Add the fractions

In the first example, what is the improper fraction form of 3 1/2?

• 5/2

• 7/2

• 6/2

• 8/2

What is the common denominator used in the first example?

• 2

• 8

• 4

• 16

In the second example, what is the improper fraction form of 2 1/2?

• 5/4

• 5/2

• 7/2

• 9/2

What is the common denominator used in the second example?

• 8

• 2

• 4

• 16

In the third example, what is the improper fraction form of 3 3/4?

• 15/4

• 16/4

• 13/4

• 14/4

What is the common denominator used in the third example?

• 16

• 8

• 4

• 2

What is the result of subtracting 3 3/4 from 2 1/16 in the third example?

• 15/16

• 11/16

• 27/16

• 9/16

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

• Multiply the numerator by the denominator

• Divide the numerator by the denominator

• Add the numerator and denominator

• Subtract the numerator from the denominator

What is the final mixed fraction result of 27/16?

• 1 5/16

• 1 9/16

• 1 11/16

• 1 7/16