Solutions by everydaycalculation.com
1st number: 10/30, 2nd number: 2 21/30
1030 - 8130 is -7130.
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Related: 20/30-81/30 10/60-81/30 10/30-81/60 10/90-81/30 10/30-81/90 50/30-81/30 70/30-81/30
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