Solutions by everydaycalculation.com
1st number: 21/30, 2nd number: 1 26/30
2130 - 5630 is -76.
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Related: 42/30-56/30 21/60-56/30 21/30-56/60 63/30-56/30 21/90-56/30 21/30-56/90
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