Solutions by everydaycalculation.com
1st number: 3 3/4, 2nd number: 21/45
This multiplication involving fractions can also be rephrased as "What is 15/4 of 21/45?"
154 × 2145 is 74.
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Related: 30/4×21/45 15/4×42/45 15/8×21/45 15/4×21/90 45/4×21/45 15/4×63/45 15/12×21/45 75/4×21/45 15/20×21/45 15/28×21/45
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