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Multiply 4/15 with 5/21

This multiplication involving fractions can also be rephrased as "What is 4/15 of 5/21?"

4/15 × 5/21 is 4/63.

Steps for multiplying fractions

  1. Simply multiply the numerators and denominators separately:
  2. 4/15 × 5/21 = 4 × 5/15 × 21 = 20/315
  3. After reducing the fraction, the answer is 4/63

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