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Subtract 10/50 from 42/80

42/80 - 10/50 is 13/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 50 is 400
  2. For the 1st fraction, since 80 × 5 = 400,
    42/80 = 42 × 5/80 × 5 = 210/400
  3. Likewise, for the 2nd fraction, since 50 × 8 = 400,
    10/50 = 10 × 8/50 × 8 = 80/400
  4. Subtract the two fractions:
    210/400 - 80/400 = 210 - 80/400 = 130/400
  5. After reducing the fraction, the answer is 13/40

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