Solutions by everydaycalculation.com
1st number: 6/60, 2nd number: 3 1/21
660 ÷ 6421 is 21640.
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Related: 12/60÷64/21 6/60÷64/42 18/60÷64/21 6/60÷64/63 30/60÷64/21 42/60÷64/21
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