Solutions by everydaycalculation.com
1st number: 18/30, 2nd number: 1 4/10
1830 - 1410 is -45.
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Related: 36/30-14/10 18/30-28/10 18/60-14/10 18/30-14/20 54/30-14/10 18/30-42/10 18/90-14/10 18/30-14/30 90/30-14/10 18/30-70/10 18/30-14/50 18/30-98/10 18/30-14/70
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