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Multiply 21/42 with 63/90

This multiplication involving fractions can also be rephrased as "What is 21/42 of 63/90?"

21/42 × 63/90 is 7/20.

Steps for multiplying fractions

  1. Simply multiply the numerators and denominators separately:
  2. 21/42 × 63/90 = 21 × 63/42 × 90 = 1323/3780
  3. After reducing the fraction, the answer is 7/20

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