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Preparation to find the common denominator of fractions with different denominators

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Preparation to find the common denominator of fractions with different denominators

Adding and subtracting fractions 4.

We are learning all three methods to find the common denominator of fractions with different denominators. In this chapter the internal arithmetic structure of the denominators of the fractions is still visible. Therefore, in each type we will learn why and how to find the common denominator of the factors in the denominators of the fractions. Furthermore, we will understand how to expand the fractions in order to find the common denominator.

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