Solutions by everydaycalculation.com
1st number: 20 0/2, 2nd number: 4/10
This multiplication involving fractions can also be rephrased as "What is 40/2 of 4/10?"
402 × 410 is 81.
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Related: 80/2×4/10 40/2×8/10 40/4×4/10 40/2×4/20 40/2×12/10 40/6×4/10 40/2×4/30 40/2×20/10 40/10×4/10 40/2×4/50 40/2×28/10 40/14×4/10 40/2×4/70
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