Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 1/21 of 5/80?"
121 × 580 is 1336.
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Related: 2/21×5/80 1/21×10/80 1/42×5/80 3/21×5/80 1/21×15/80 1/63×5/80 5/21×5/80 1/21×25/80 7/21×5/80 1/21×35/80
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