Solutions by everydaycalculation.com
1st number: 21 0/2, 2nd number: 6/63
This multiplication involving fractions can also be rephrased as "What is 42/2 of 6/63?"
422 × 663 is 21.
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Related: 84/2×6/63 42/2×12/63 42/4×6/63 42/2×18/63 42/6×6/63 42/2×30/63 42/10×6/63 42/2×42/63 42/14×6/63
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