Solutions by everydaycalculation.com
1st number: 1 12/20, 2nd number: 8/20
3220 + 820 is 21.
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Related: 64/20+8/20 32/20+16/20 32/40+8/20 32/20+8/40 96/20+8/20 32/20+24/20 32/60+8/20 32/20+8/60 32/20+40/20 32/20+56/20
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