Solutions by everydaycalculation.com
1st number: 16/20, 2nd number: 3 10/20
1620 + 7020 is 4310.
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Related: 32/20+70/20 16/40+70/20 16/20+70/40 48/20+70/20 16/60+70/20 16/20+70/60 80/20+70/20
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