Subtracting Mixed Numbers and Improper Fractions

The video tutorial explains how to subtract mixed numbers using improper fractions. It emphasizes the importance of common denominators and demonstrates the process through several examples. The tutorial also highlights the need for simplification after subtraction and provides strategies for handling larger numbers.

Why is it important to have common denominators when subtracting mixed numbers?

• To avoid using improper fractions

• To make the subtraction process faster

• To ensure the fractions are compatible for subtraction

• To make the numbers look nicer

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the first step in subtracting 3 and 2/5 from 1 and 4/5?

• Subtract the whole numbers

• Find a common denominator

• Convert to improper fractions

• Simplify the fractions

Tags

CCSS.7.NS.A.1C

After converting 3 and 2/5 to an improper fraction, what is the result?

• 21/5

• 19/5

• 17/5

• 15/5

What is the common denominator used for subtracting 4 and 2/7 from 2 and 1/2?

• 7

• 14

• 21

• 28

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the improper fraction form of 4 and 2/7?

• 31/7

• 30/7

• 28/7

• 30/14

What is the common denominator used for subtracting 6 and 1/6 from 1 and 2/3?

• 3

• 6

• 9

• 12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the improper fraction form of 6 and 1/6?

• 38/6

• 37/6

• 36/6

• 35/6

What is the common denominator used for subtracting 3 and 3/5 from 2 and 5/7?

• 25

• 35

• 7

• 5

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the improper fraction form of 3 and 3/5?

• 21/5

• 20/5

• 19/5

• 18/5

What is the final step after subtracting the numerators of improper fractions?

• Find a new common denominator

• Simplify the fraction

• Convert back to mixed numbers

• Add the whole numbers

Tags

CCSS.7.NS.A.1C