Solutions by everydaycalculation.com
1st number: 7/8, 2nd number: 1 1/7
78 + 87 is 11356.
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Related: 14/8+8/7 7/8+16/7 7/16+8/7 7/8+8/14 21/8+8/7 7/8+24/7 7/24+8/7 7/8+8/21 35/8+8/7 7/8+40/7 7/40+8/7 7/8+8/35 49/8+8/7 7/8+56/7 7/56+8/7 7/8+8/49
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