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Numerators and denominators are just numbers; I hope you're not asking us to factor every number. There are many different methods. I prefer to find the prime factorization; that leads to all the other factors. Some people like to use a factor tree to help visualize the prime factorization.
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Why do you multiply numerators and denominators by the same number?
you have to multiply numerators and denominators because whatever you do to the bottom you have to do to the top
What is relationship between numerators and denominators of factors and numerators and denominators of product?
this is a tricky question but the relationship between the numerators of the product is that they both fractions - and for the next question is that in some fraction their is aways going to have the same denominator that never changes or DONT CHANGE AT ALL !
What is the product of numerators and opposite denominators in a proportion called?
The answer is cross products.
How do you multiply fractions with variables?
In order to multiply fractions with variables, factor all numerators and denominators completely. Use the rules for multiplying and dividing fractions, cancel any common factors, and leave your final answer in factored form.
How do you subtract fractions with same denominators?
you subtract the numerators, and leeave the denomonators alone
