Solutions by everydaycalculation.com
1030 - 430 is 15.
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Related: 20/30-4/30 10/30-8/30 10/60-4/30 10/30-4/60 10/30-12/30 10/90-4/30 10/30-4/90 50/30-4/30 10/30-20/30 70/30-4/30 10/30-28/30
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