Solutions by everydaycalculation.com
1st number: 7/8, 2nd number: 1 2/7
78 - 97 is -2356.
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Related: 14/8-9/7 7/8-18/7 7/16-9/7 7/8-9/14 21/8-9/7 7/8-27/7 7/24-9/7 7/8-9/21 35/8-9/7 7/8-45/7 7/40-9/7 7/8-9/35 49/8-9/7 7/8-63/7 7/56-9/7 7/8-9/49
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