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Multiply 21/5 with 9/18

1st number: 4 1/5, 2nd number: 9/18

This multiplication involving fractions can also be rephrased as "What is 21/5 of 9/18?"

21/5 × 9/18 is 21/10.

Steps for multiplying fractions

  1. Simply multiply the numerators and denominators separately:
  2. 21/5 × 9/18 = 21 × 9/5 × 18 = 189/90
  3. After reducing the fraction, the answer is 21/10
  4. In mixed form: 21/10

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