Solutions by everydaycalculation.com
1st number: 4 0/4, 2nd number: 7/8
164 + 78 is 398.
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Related: 32/4+7/8 16/4+14/8 16/8+7/8 16/4+7/16 48/4+7/8 16/4+21/8 16/12+7/8 16/4+7/24 80/4+7/8 16/4+35/8 16/20+7/8 16/4+7/40 16/4+49/8 16/28+7/8 16/4+7/56
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