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Multiply 81/4 with 9/21

1st number: 20 1/4, 2nd number: 9/21

This multiplication involving fractions can also be rephrased as "What is 81/4 of 9/21?"

81/4 × 9/21 is 243/28.

Steps for multiplying fractions

  1. Simply multiply the numerators and denominators separately:
  2. 81/4 × 9/21 = 81 × 9/4 × 21 = 729/84
  3. After reducing the fraction, the answer is 243/28
  4. In mixed form: 819/28

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