Solutions by everydaycalculation.com
1st number: 3 1/5, 2nd number: 7 1/7
165 - 507 is -13835.
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Related: 32/5-50/7 16/10-50/7 16/5-50/14 48/5-50/7 16/15-50/7 16/5-50/21 80/5-50/7 16/25-50/7 16/5-50/35 16/35-50/7 16/5-50/49
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