Understanding Fractions: Addition and Subtraction

This video tutorial explains how to add and subtract fractions. It begins with an introduction to fractions, defining numerators and denominators. The video outlines the rule that denominators must be the same to add or subtract fractions. It provides a step-by-step guide to finding a common denominator, converting fractions, and simplifying the result. Additionally, the butterfly method is introduced as an alternative approach. The tutorial concludes with a recap of the steps and encourages viewers to like and subscribe.

What is the top part of a fraction called?

• Dividend

• Quotient

• Numerator

• Denominator

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

When adding fractions, what must be the same?

• Whole numbers

• Denominators

• Numerators

• Mixed numbers

Tags

CCSS.7.NS.A.1C

What is the first step in adding fractions with different denominators?

• Add the numerators

• Subtract the denominators

• Multiply the fractions

• Find a common denominator

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

How do you convert a fraction after finding a common denominator?

• Multiply both numerator and denominator by the same number

• Add the numerators

• Subtract the denominators

• Divide the numerator by the denominator

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the result of subtracting 32/56 from 42/56?

• 12/56

• 8/56

• 14/56

• 10/56

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the butterfly method used for?

• Multiplying fractions

• Simplifying fractions

• Dividing fractions

• Adding and subtracting fractions

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

In the butterfly method, what do you do after multiplying diagonally?

• Divide the results

• Add the results

• Subtract the results

• Multiply the denominators

Tags

CCSS.7.NS.A.1C

What is the final step in both methods of adding or subtracting fractions?

• Find a common denominator

• Multiply the numerators

• Convert fractions

• Simplify the fraction

What is the simplified form of 45/50?

• 5/10

• 10/9

• 9/10

• 45/5

What should you do if your final fraction is not in its simplest form?

• Subtract 1 from the denominator

• Add 1 to the numerator

• Divide it by the greatest common factor

• Multiply it by 2