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Subtract 42/50 from 84/80

1st number: 1 4/80, 2nd number: 42/50

84/80 - 42/50 is 21/100.

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,
    84/80 = 84 × 5/80 × 5 = 420/400
  3. Likewise, for the 2nd fraction, since 50 × 8 = 400,
    42/50 = 42 × 8/50 × 8 = 336/400
  4. Subtract the two fractions:
    420/400 - 336/400 = 420 - 336/400 = 84/400
  5. After reducing the fraction, the answer is 21/100

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