Understanding Adding and Subtracting Fractions

The video tutorial covers adding and subtracting fractions, starting with a review of converting mixed numbers to improper fractions and vice versa. It explains how to use a calculator to simplify fractions and emphasizes the importance of common denominators in addition and subtraction. The tutorial includes examples of adding and subtracting fractions, both with simple fractions and mixed numbers, and concludes with practice problems and a formative assessment.

What is the first step in simplifying a fraction using a calculator?

• Multiply the numerator by the denominator.

• Divide the numerator by the denominator.

• Type in the numerator and denominator.

• Press the simplify button.

What is the least common multiple of 3 and 4 when adding fractions?

• 6

• 9

• 12

• 7

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the result of adding 2/3 and 3/4 after finding a common denominator?

• 1 1/10

• 5/7

• 1 5/12

• 1 1/12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

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

• Multiply the whole number by the denominator and add the numerator.

• Add the numerator to the denominator and multiply by the whole number.

• Divide the numerator by the denominator and add the whole number.

• Subtract the numerator from the denominator and multiply by the whole number.

What is the simplified form of 17/24?

• 3/8

• 17/24

• 2/3

• 1/4

What must be the same for adding or subtracting fractions?

• Numerators

• Whole numbers

• Denominators

• Fraction types

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

How do you find the common denominator for 7/8 and 1/6?

• Add 8 and 6

• Multiply 8 by 6

• Subtract 6 from 8

• Divide 8 by 6

What should you do if you struggle with adding fractions?

• Stop studying fractions

• Skip the problems

• Guess the answers

• Join a Google Meet for help

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

When subtracting mixed numbers, why is it recommended to convert them to improper fractions?

• It avoids confusion with borrowing

• It reduces the denominators

• It's easier to find the LCM

• It simplifies the numerators

Tags

CCSS.7.NS.A.1C

How do you simplify 3/6?

• 1/2

• 1/3

• 2/3

• 3/6