Solutions by everydaycalculation.com
This multiplication involving fractions can also be rephrased as "What is 18/45 of 12/20?"
1845 × 1220 is 625.
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Related: 36/45×12/20 18/45×24/20 18/90×12/20 18/45×12/40 54/45×12/20 18/45×36/20 18/45×12/60 90/45×12/20 18/45×60/20 18/45×84/20
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