Solutions by everydaycalculation.com
The simplest form of 19801980 is 11.
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Equivalent fractions: 3960/3960 990/990 5940/5940 660/660 9900/9900 396/396
More fractions: 3960/1980 1980/3960 5940/1980 1980/5940 1981/1980 1980/19811979/1980 1980/1979
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