Subtracting Mixed Numbers and Fractions

In this video, Mr. J explains how to subtract mixed numbers through a step-by-step example. The process involves rewriting the problem vertically, finding a common denominator, renaming fractions, subtracting, and simplifying the result. The example used is 9 and 3/4 minus 2 and 2/8, which simplifies to 7 and 1/2. The video is designed for those needing a quick review or refresher on the topic.

What is the main topic covered in this video?

• Subtracting mixed numbers

• Dividing mixed numbers

• Adding mixed numbers

• Multiplying mixed numbers

Tags

CCSS.7.NS.A.1C

What is the first step in setting up the subtraction problem?

• Simplifying the fractions

• Rewriting the problem vertically

• Writing the problem horizontally

• Finding the least common multiple

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Why do we need a common denominator when subtracting fractions?

• To simplify the fractions

• To ensure the fractions are equivalent

• To make the fractions larger

• To change the whole numbers

What is the least common multiple of 4 and 8?

• 4

• 16

• 12

• 8

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

How do you rename 3/4 with a denominator of 8?

• 12/8

• 6/8

• 3/8

• 9/8

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the result of subtracting 6/8 from 2/8?

• 4/8

• 6/8

• 8/8

• 2/8

What is the simplified form of 4/8?

• 1/2

• 1/4

• 2/4

• 3/4

Tags

CCSS.7.NS.A.1C

What is the final simplified answer for the subtraction problem?

• 7 and 4/8

• 7 and 1/4

• 7 and 1/2

• 7 and 3/8

What is the greatest common factor used to simplify 4/8?

• 8

• 4

• 2

• 1

What is the first step in simplifying a fraction?

• Multiply the numerator and denominator

• Find the greatest common factor

• Subtract the numerator from the denominator

• Add the numerator and denominator