Solutions by everydaycalculation.com
1st number: 18/28, 2nd number: 1 17/28
1828 - 4528 is -2728.
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Related: 36/28-45/28 18/28-90/28 18/56-45/28 18/28-45/56 54/28-45/28 18/84-45/28 18/28-45/84 90/28-45/28
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