Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 5/6 of 5/7?"
56 × 57 is 2542.
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Related: 10/6×5/7 5/6×10/7 5/12×5/7 5/6×5/14 15/6×5/7 5/6×15/7 5/18×5/7 5/6×5/21 25/6×5/7 5/6×25/7 5/30×5/7 5/6×5/35 35/6×5/7 5/6×35/7 5/42×5/7 5/6×5/49
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