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Multiply 21/80 with 42/70

This multiplication involving fractions can also be rephrased as "What is 21/80 of 42/70?"

21/80 × 42/70 is 63/400.

Steps for multiplying fractions

  1. Simply multiply the numerators and denominators separately:
  2. 21/80 × 42/70 = 21 × 42/80 × 70 = 882/5600
  3. After reducing the fraction, the answer is 63/400

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