Solutions by everydaycalculation.com
1st number: 1 10/20, 2nd number: 7/20
3020 + 720 is 3720.
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Related: 60/20+7/20 30/20+14/20 30/40+7/20 30/20+7/40 90/20+7/20 30/20+21/20 30/60+7/20 30/20+7/60 30/20+35/20 30/20+49/20
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