Solutions by everydaycalculation.com
1st number: 4 0/2, 2nd number: 2 0/4
This multiplication involving fractions can also be rephrased as "What is 8/2 of 2 0/4?"
82 × 84 is 81.
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Related: 16/2×8/4 8/2×16/4 8/4×8/4 24/2×8/4 8/2×24/4 8/6×8/4 8/2×8/12 40/2×8/4 8/2×40/4 8/10×8/4 8/2×8/20 56/2×8/4 8/2×56/4 8/14×8/4 8/2×8/28
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