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Find Common Denominators (Practice) worksheet - Free Printable

Educational worksheet: Find Common Denominators (Practice) worksheet. Download and print for classroom or home learning activities.

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1. a. Multiples of 5: 5, 10, 15, 20, 25, 30; Multiples of 6: 6, 12, 18, 24, 30, 36; Least common multiple of 5 and 6: 30
b. Multiples of 2: 2, 4, 6, 8, 10, 12; Multiples of 4: 4, 8, 12, 16, 20, 24; Multiples of 8: 8, 16, 24, 32, 40, 48; Least common multiple of 2, 4 and 8: 8

2. Common denominators for 1/3 and 5/4: 12, 24, 36; Least common denominator: 12

3. a. Least common denominator: 40; 2/5 = 16/40 (×8); 3/8 = 15/40 (×5)
b. Least common denominator: 9; 1/3 = 3/9 (×3); 4/9 = 4/9 (×1)
c. Least common denominator: 56; 5/8 = 35/56 (×7); 1/7 = 8/56 (×8)
d. Least common denominator: 12; 4/6 = 8/12 (×2); 3/4 = 9/12 (×3)

Parent Tip: Review the logic above to help your child master the concept of common denominators worksheet.

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