Solutions by everydaycalculation.com
1st number: 5/28, 2nd number: 7 5/7
528 - 547 is -21128.
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Related: 10/28-54/7 5/56-54/7 5/28-54/14 15/28-54/7 5/84-54/7 5/28-54/21 25/28-54/7 5/28-54/35 35/28-54/7 5/28-54/49
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