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What is the differeince between common factors and common multiples?
Common factors go into the numbers, the numbers go into common multiples.
How do you know whether to use common factors or multiples to solve a problem?
The hcf is useful in reducing fractions to their lowest terms and the lcm is useful in finding the lowest common denominator of fractions that have different denominators that need to be added or subtracted.
What do factors have to do with real life?
Number factors help find common denominators in fractions and reducing fractions. In algebra they are used to find the answers to higher level equations like quadratics.
Do you do factors of the greatest common factor or multiples?
When doing fractions it is the greatest common factor (GCF) and the least common multiple (LCM). You want the GCF when you are reducing fractions to their simplest form. When changing the denominators to a common one, you want the LCM.
What is the LCM of the denominators of two or more fractions?
The least common multiple of two or more denominators is known as the least common denominator, or LCD.
