It's easy to add and subtract fractions when the numbers on the bottom are the same. These are called the denominators. You can use equivalent fractions to make them the same. A common multiple of ...

It's easy to add and subtract fractions when the numbers on the bottom are the same. These are called the denominators. You can use equivalent fractions to make them the same. A common multiple of ...

Additionally, a simple algorithm for expanding power series as continued fractions was presented, which connects historical mathematical figures like Euler and Gauss to modern polynomial theory.