Solutions by everydaycalculation.com
1st number: 3/90, 2nd number: 7 0/9
390 ÷ 639 is 1210.
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Related: 6/90÷63/9 3/90÷63/18 9/90÷63/9 3/90÷63/27 15/90÷63/9 3/90÷63/45 21/90÷63/9
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