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# How do you multiply/divide rational expressions with different denominators​

• Réponse publiée par: christiandumanon

find the greatest common factor of each denominator

divide the denominator to each numerator

• Réponse publiée par: alexespinosa

Least Common Denominator / LCD

• Réponse publiée par: cyrilc310

x-5 over x( x + 2)

• Réponse publiée par: 20201947

secret

Step-by-step explanation:

secret

• Réponse publiée par: kuanjunjunkuan

Step-by-step explanation:

Step 1: Find the LCD

Step 2: Express each fraction with the LCD as the denominator.

Step 3: Subtract the numerators and simplify when possible.

• Réponse publiée par: nelspas422

There are a few steps to follow when you add or subtract rational expressions with unlike denominators.

To add or subtract rational expressions with unlike denominators, first find the LCM of the denominator. The LCM of the denominators of fraction or rational expressions is also called least common denominator , or LCD.

Write each expression using the LCD. Make sure each term has the LCD as its denominator.

Simplify as needed.