PRE-ALGEBRA
Lesson 43 of 171

ADDITION AND SUBTRACTION
Adding and Subtracting Unlike Fractions
Students learn to add unlike fractions by first finding a common denominator. For example, to add 1/2 + 1/3, first find the common denominator of 2 and 3, or the Least Common Multiple of 2 and 3, which is 6. Then multiply the numerator and denominator of 1/2 by 3, to get the equivalent  more...
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