Solutions by everydaycalculation.com
The simplest form of 18002100 is 67.
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Equivalent fractions: 3600/4200 900/1050 5400/6300 600/700 360/420
More fractions: 3600/2100 1800/4200 5400/2100 1800/6300 1801/2100 1800/21011799/2100 1800/2099
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