Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 18/20 of 21/30?"
1820 × 2130 is 63100.
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Related: 36/20×21/30 18/20×42/30 18/40×21/30 18/20×21/60 54/20×21/30 18/20×63/30 18/60×21/30 18/20×21/90 90/20×21/30
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