Subtracting Fractions with Unlike Denominators using Area Models

This video tutorial teaches how to subtract fractions with unlike denominators using area models. It begins by explaining the basic concepts of fractions, including numerators and denominators. The importance of having a common denominator for subtraction is highlighted through examples. The tutorial then demonstrates how to create area models for fractions like 3/4 and 2/3, and how to find a common denominator by combining these models. Finally, it shows how to subtract fractions once they have a common denominator, resulting in a simplified fraction.

What are the two main components of a fraction?

• Fraction and Decimal

• Top and Bottom

• Whole and Part

• Numerator and Denominator

Why can't you subtract 5 motorcycles from 3 trucks?

• Because they are different types of vehicles

• Because they have different colors

• Because they are not the same unit

• Because they are not the same size

What is the purpose of using a common denominator in fraction subtraction?

• To convert fractions to decimals

• To make the fractions look similar

• To ensure the fractions have the same unit

• To simplify the fractions

How do you represent 3/4 using an area model?

• Divide into 3 parts and shade 4

• Divide into 4 parts and shade 3

• Divide into 4 parts and shade 2

• Divide into 3 parts and shade 2

What is the common denominator for 3/4 and 2/3?

• 9

• 6

• 15

• 12

How many twelfths is 3/4 equivalent to?

• 6 twelfths

• 9 twelfths

• 8 twelfths

• 10 twelfths

What is the result of subtracting 8 twelfths from 9 twelfths?

• 4/12

• 2/12

• 1/12

• 3/12