Solutions by everydaycalculation.com
1st number: 12/20, 2nd number: 3 10/20
1220 + 7020 is 4110.
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Related: 24/20+70/20 12/40+70/20 12/20+70/40 36/20+70/20 12/60+70/20 12/20+70/60 60/20+70/20 84/20+70/20
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