Subtracting Fractions with Unlike Denominators

The video tutorial explains how to subtract fractions with unlike denominators using a pizza party scenario. It covers the importance of having like denominators, converting mixed numbers to improper fractions, and finding common denominators. The tutorial walks through setting up the subtraction equation, converting fractions, and solving the equation to find the remaining pizza after subtraction.

Why is it necessary to have common denominators when subtracting fractions?

• To simplify the fractions before subtracting.

• To ensure the fractions are equivalent.

• To avoid converting fractions to decimals.

• To make the subtraction process faster.

What is the first step in setting up the subtraction problem with pizzas?

• Divide the fractions by their numerators.

• Add the fractions together.

• Find the least common multiple of the denominators.

• Convert the mixed number to an improper fraction.

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

• Subtract the numerator from the whole number.

• Add the whole number to the numerator.

• Divide the numerator by the denominator.

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

What is the next step after converting the mixed number to an improper fraction?

• Convert the fractions to have a common denominator.

• Add the fractions together.

• Multiply the fractions by their numerators.

• Divide the fractions by their denominators.

How do you convert fractions to have a common denominator?

• Divide the numerators by the denominators.

• Subtract the denominators from each other.

• Add the numerators together.

• Multiply both the numerator and denominator by the same number.

What is the result of subtracting 3/4 from 10/4?

• 7/4

• 5/4

• 3/4

• 1/4

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

• Multiply the numerator by the denominator.

• Subtract the denominator from the numerator.

• Divide the numerator by the denominator to find the whole number.

• Add the numerator to the denominator.