How to add a positive and negative fraction

The video tutorial covers the process of combining fractions, emphasizing the need for common denominators. It explains how to find a common denominator by multiplying denominators and checking for the least common denominator. The tutorial also discusses the importance of maintaining equivalent fractions when multiplying and provides a step-by-step guide to combining fractions with common denominators.

What is the simplest method to find a common denominator for two fractions?

• Add the numerators

• Multiply the denominators

• Subtract the denominators

• Divide the numerators

How can you determine the least common denominator?

• Choose the smallest denominator and list its multiples

• Choose the largest denominator and list its multiples

• Subtract the smaller denominator from the larger one

• Add the denominators together

Why might multiplying denominators not always give the least common denominator?

• It only works for positive fractions

• It changes the numerators

• It may result in a need for further simplification

• It always gives the least common denominator

What must you do to keep a fraction equivalent when adjusting its denominator?

• Only multiply the denominator

• Only multiply the numerator

• Multiply both the numerator and denominator

• Add the same number to both the numerator and denominator

When combining fractions with common denominators, what should you do with the numerators?

• Add or subtract them

• Multiply them

• Leave them unchanged

• Divide them