Solutions by everydaycalculation.com
1st number: 1 3/15, 2nd number: 18/30
1815 ÷ 1830 is 21.
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Related: 36/15÷18/30 18/15÷36/30 18/30÷18/30 18/15÷18/60 54/15÷18/30 18/15÷54/30 18/45÷18/30 18/15÷18/90 90/15÷18/30 18/15÷90/30 18/75÷18/30
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