Question

Which operations with fractions REQUIRE common denominators.

Answers

GPT-4o mini
The operations with fractions that require common denominators are:

1. **Addition of Fractions**: When adding two or more fractions, you need to have a common denominator to combine the numerators effectively. For example, to add \( \frac{1}{4} + \frac{1}{6} \), you first find a common denominator (in this case, 12), and convert each fraction to an equivalent form before adding.

2. **Subtraction of Fractions**: Similar to addition, when subtracting fractions, a common denominator is necessary. For instance, \( \frac{3}{5} - \frac{1}{3} \) would require a common denominator to perform the subtraction.

In summary, both addition and subtraction of fractions require common denominators to be carried out correctly.

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