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Multiply 40/90 with 1/21

This multiplication involving fractions can also be rephrased as "What is 40/90 of 1/21?"

40/90 × 1/21 is 4/189.

Steps for multiplying fractions

  1. Simply multiply the numerators and denominators separately:
  2. 40/90 × 1/21 = 40 × 1/90 × 21 = 40/1890
  3. After reducing the fraction, the answer is 4/189

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