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Multiply 21/4 with 21/5

1st number: 5 1/4, 2nd number: 4 1/5

This multiplication involving fractions can also be rephrased as "What is 21/4 of 4 1/5?"

21/4 × 21/5 is 441/20.

Steps for multiplying fractions

  1. Simply multiply the numerators and denominators separately:
  2. 21/4 × 21/5 = 21 × 21/4 × 5 = 441/20
  3. In mixed form: 221/20

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