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Fractions XII

# Fractions xii

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Unformatted text preview: Fraction XII Fraction XII Subtracting Unlike Denominators By Monica Yuskaitis Common Multiple Common Multiple A number that is a multiple of two or more numbers. Some multiples of 4 & 6 12, 24, 36 Least Common Multiple Least Common Multiple The smallest common multiple of a set of two or more numbers. 8 = 8, 16, 24, 32, 40, 48 6 = 6, 12, 18, 24, 30, 36 Shortcut for Finding the Least Shortcut for Finding the Least Common Denominator or Least Common Multiple Check to see if the smaller denominator divides evenly into the larger denominator. If it does, use the larger denominator for your LCD or LCM. 1 3 1 -9 3 will divide evenly into 9, so 9 is your LCD or LCM. To Subtract Fractions With To Subtract Fractions With Unlike Denominators Find the multiples of each denominator. 1 5 = 5, 10, 15, 20, 25, 30 1 - 10 = 10, 20, 30, 40, 50 To Subtract Fractions With To Subtract Fractions With Unlike Denominators Compare the lists of multiples. Circle the common multiples between the two lists. 1 5 = 5, 10, 15, 20, 25, 30 1 - 10 = 10, 20, 30, 40, 50 To Subtract Fractions With To Subtract Fractions With Unli...
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