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.

Most people break out in a cold sweat when they see fractions. There's something about those little lines and numbers stacked on top of each other that makes even confident adults feel like they're ...

Students will find common denominators to help add fractions with unlike denominators. Students will join Ms. MacDonald to find common denominators to help add fractions with unlike denominators.

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Click to see a step-by-step slideshow. Image caption, STEP 1 - When adding fractions it can be useful to visualise it. Draw a square with 4 columns and shade in one of the columns. This represents ¹/₄ ...