How to Find LCD Math - Search Videos

Adding & Subtracting Fractions by finding the LCD - the denominators' Least Common Multiple

We learn how to find two fractions lcd, least common denominator, to add them together and to subtract one from another. The trick is to find the denominator's least common multiple: that's the lcd. Once that's done, we write each fraction as it's equivalent fraction over the lcd to then be able to add or subtract.

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