Common Denominators with Number Line

To find a common denominator of 1/3 and 1/4, place a 1/3 segment and a 1/4 segment from zero. Change the number line interval size until both the 1/4 and 1/3 segments fall on intervals. Since 1/4 and 1/3 segments both fall on intervals of twelfths, twelve is a common denominator of 1/4 and 1/3.



Common Denominators using the Brainingcamp Number Line virtual manipulative.

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