# Working with Prime factorization

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Rewrite in the simplest form. State the GCF(greatest common factor) of numerator and denominator in each case.

1. 34/85

2. 123123/567567

Find 5/9+7/12 using three different denominators. Give your answers as mixed numbers in lowest terms. State the LCM (least common multiple)of the denominators.

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The Greatest Common Factor is the largest number that is a common factor of two or more numbers.

To find the greatest common factor:

Make a list of factors for each whole number.

Identify the factors that are common to all lists.

The greatest common factor is the largest of these common factors

Q1. ...

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