Solutions by everydaycalculation.com
1st number: 20 0/2, 2nd number: 6/21
This multiplication involving fractions can also be rephrased as "What is 40/2 of 6/21?"
402 × 621 is 407.
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Related: 80/2×6/21 40/2×12/21 40/4×6/21 40/2×6/42 40/2×18/21 40/6×6/21 40/2×6/63 40/2×30/21 40/10×6/21 40/2×42/21 40/14×6/21
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