“Who would draw a picture to divide 2/3 by 3/4?” asked Marina Ratner, a professor emerita of mathematics at the University of California at Berkeley, in a recent Wall Street Journal opinion piece.

In adding and subtracting fractions with unlike denominators, you have to get a least common denominator which is exactly like the least common multiple it just so happens to be in the denominator.

In fractions, the denominator is the bottom number and the numerator is the top number. When multiplying two fractions together, we are left with a fraction of a fraction. It can be useful to ...

Support your knowledge of this topic by looking at these guides on Lowest Common Multiple and equivalent fractions. Look at the examples below on how to add and subtract fractions and mixed numbers.

For many elementary teachers, fractions have traditionally sprung to mind lessons involving pizzas, pies, and chocolate bars, among other varieties of “wholes” that can be shared. But in what many ...