Solutions by everydaycalculation.com
1st number: 1 1/4, 2nd number: 6 6/7
54 - 487 is -15728.
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Related: 10/4-48/7 5/4-96/7 5/8-48/7 5/4-48/14 15/4-48/7 5/12-48/7 5/4-48/21 25/4-48/7 5/20-48/7 5/4-48/35 35/4-48/7 5/28-48/7 5/4-48/49
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