Adding and Subtracting Fractions and Mixed Numbers Mastery

The video tutorial covers the process of adding and subtracting fractions and mixed numbers. It begins with an introduction to fractions, emphasizing the importance of finding a common denominator. The tutorial explains how to convert mixed numbers to improper fractions and find equivalent fractions. Several example problems are solved to illustrate these concepts, including both addition and subtraction of fractions and mixed numbers.

What is the first step when adding or subtracting mixed numbers?

• Convert them to improper fractions

• Find the LCD

• Add the numerators

• Subtract the denominators

Tags

CCSS.7.NS.A.1C

Why is it necessary to have the same denominator when adding or subtracting fractions?

• To be able to add or subtract the numerators directly

• To make the fractions improper

• To simplify the fractions

• To ensure the fractions are equivalent

Tags

CCSS.7.NS.A.1C

How do you find an equivalent fraction?

• Divide the numerator and denominator by the same number

• Subtract the numerator from the denominator

• Add the numerator and denominator

• Multiply the numerator and denominator by the same number

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

What is the result of subtracting 9/12 and 4/12?

• 7/12

• 5/12

• 1/12

• 3/12

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the LCD of 6/7 and 1/2?

• 12

• 7

• 2

• 14

What is the sum of 12/14 and 7/14?

• 19/14

• 1/14

• 5/14

• 14/14

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

How do you convert 2 1/6 to an improper fraction?

• 11/6

• 7/6

• 12/6

• 13/6

What is the LCD of 13/6 and 31/9?

• 18

• 12

• 9

• 6

What is the result of adding 39/18 and 62/18?

• 101/18

• 101/36

• 101/9

• 101/6

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the result of subtracting 121/33 and 78/33?

• 43/3

• 43/11

• 43/66

• 43/33

Tags

CCSS.7.NS.A.1C