Solutions by everydaycalculation.com

This multiplication involving fractions can also be rephrased as "What is 5/15 of 21/28?"

515 × 2128 is 14.

- Simply multiply the numerators and denominators separately:
- 515 × 2128 = 5 × 2115 × 28 = 105420
- After reducing the fraction, the answer is 14

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