Solutions by everydaycalculation.com
1st number: 5 2/5, 2nd number: 5 5/7
275 - 407 is -1135.
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Related: 54/5-40/7 27/5-80/7 27/10-40/7 27/5-40/14 81/5-40/7 27/15-40/7 27/5-40/21 27/25-40/7 27/5-40/35 27/35-40/7 27/5-40/49
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