Solutions by everydaycalculation.com
1st number: 3/10, 2nd number: 16 2/3
310 - 503 is -49130.
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Related: 6/10-50/3 3/20-50/3 3/10-50/6 9/10-50/3 3/30-50/3 3/10-50/9 15/10-50/3 3/50-50/3 3/10-50/15 21/10-50/3 3/70-50/3 3/10-50/21
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