Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 21/24 of 1/21?"
2124 × 121 is 124.
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Related: 42/24×1/21 21/24×2/21 21/48×1/21 21/24×1/42 63/24×1/21 21/24×3/21 21/72×1/21 21/24×1/63 21/24×5/21 21/24×7/21
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