Solutions by everydaycalculation.com
1st number: 7/8, 2nd number: 5 5/7
78 - 407 is -27156.
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Related: 14/8-40/7 7/8-80/7 7/16-40/7 7/8-40/14 21/8-40/7 7/24-40/7 7/8-40/21 35/8-40/7 7/40-40/7 7/8-40/35 49/8-40/7 7/56-40/7 7/8-40/49
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