Simplifying Fractions and Models

The video tutorial explains how to subtract fractions with like denominators, emphasizing that the denominator remains unchanged while the numerators are subtracted. It provides examples, such as seven-eighths minus three-eighths, and demonstrates how to simplify the resulting fraction using common factors. Visual models are used to illustrate the subtraction process, showing how fractions can be represented and simplified. Another example, four-ninths minus one-ninth, is presented to reinforce the concept. The tutorial concludes with a summary of the key points covered.

What remains the same when subtracting fractions with like denominators?

• Neither the numerator nor the denominator

• Both the numerator and denominator

• The denominator

• The numerator

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the result of subtracting three-eighths from seven-eighths?

• Five-eighths

• Four-eighths

• Two-eighths

• Six-eighths

How can the fraction four-eighths be simplified?

• Three-fourths

• Two-thirds

• One-half

• One-fourth

What common factor do four and eight share that allows simplification?

• Five

• Two

• Three

• Four

Tags

CCSS.4.NF.B.3A

In the visual model, how many pieces are left after subtracting three-eighths from seven-eighths?

• Two pieces

• Three pieces

• Five pieces

• Four pieces

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the simplified form of four-ninths minus one-ninth?

• One-third

• Two-fourths

• Two-thirds

• One-fourth

What common factor do three and nine share that allows simplification?

• Three

• Two

• One

• Four

Tags

CCSS.4.NF.B.3A

In the second example, how many pieces are left after subtracting one-ninth from four-ninths?

• Two pieces

• One piece

• Four pieces

• Three pieces

Tags

CCSS.1.G.A.3

What does each piece represent in the model for the second example?

• One-eighth

• One-eleventh

• One-ninth

• One-tenth

How is the fraction three-ninths simplified in the visual model?

• Two-thirds

• Two-fourths

• One-fourth

• One-third