Solutions by everydaycalculation.com
1st number: 18/28, 2nd number: 1 1/4
1828 - 54 is -1728.
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Related: 36/28-5/4 18/28-10/4 18/56-5/4 18/28-5/8 54/28-5/4 18/28-15/4 18/84-5/4 18/28-5/12 90/28-5/4 18/28-25/4 18/28-5/20 18/28-35/4 18/28-5/28
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