Solutions by everydaycalculation.com
1st number: 1 14/21, 2nd number: 7/20
This multiplication involving fractions can also be rephrased as "What is 35/21 of 7/20?"
3521 × 720 is 712.
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Related: 70/21×7/20 35/21×14/20 35/42×7/20 35/21×7/40 35/21×21/20 35/63×7/20 35/21×7/60 35/21×35/20 35/21×49/20
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