Subtracting Fractions with Like Denominators Using a Number Line

This video tutorial teaches how to subtract fractions with like denominators using a number line. It begins with an introduction to the concept, followed by a discussion on common mistakes students make, such as incorrectly subtracting numerators and denominators. The tutorial then demonstrates the correct method using a number line, with examples like 4/6 minus 1/6 and 4/8 minus 2/8, emphasizing the importance of equal parts and proper representation.

What is the first step in representing a fraction like 4/6 on a number line?

• Divide the number line into 6 equal parts

• Shade all parts of the number line

• Start the number line at 1

• Subtract the numerator from the denominator

When subtracting fractions, why is it incorrect to subtract both numerators and denominators?

• It applies the rules for whole numbers incorrectly

• It results in a fraction greater than 1

• It makes the fraction negative

• It does not change the fraction

In the example of subtracting 2/6 from 5/6, what is the correct result?

• 0/6

• 2/6

• 3/6

• 1/6

How do you determine the difference when subtracting fractions like 4/8 minus 2/8 using a number line?

• Add the fractions together

• Shade the entire number line

• Lay the second fraction on top of the first

• Multiply the fractions

What is the result of subtracting 2/8 from 4/8?

• 3/8

• 2/8

• 0/8

• 1/8