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Multiply 9/21 with 40/70

This multiplication involving fractions can also be rephrased as "What is 9/21 of 40/70?"

9/21 × 40/70 is 12/49.

Steps for multiplying fractions

  1. Simply multiply the numerators and denominators separately:
  2. 9/21 × 40/70 = 9 × 40/21 × 70 = 360/1470
  3. After reducing the fraction, the answer is 12/49

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