Solutions by everydaycalculation.com
1st number: 3/90, 2nd number: 5 5/7
This multiplication involving fractions can also be rephrased as "What is 3/90 of 5 5/7?"
390 × 407 is 421.
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Related: 6/90×40/7 3/90×80/7 3/90×40/14 9/90×40/7 3/90×40/21 15/90×40/7 3/90×40/35 21/90×40/7 3/90×40/49
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