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Subtract 63/80 from 45/25

1st number: 1 20/25, 2nd number: 63/80

45/25 - 63/80 is 81/80.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 80 is 400

    Next, find the equivalent fraction of both fractional numbers with denominator 400
  2. For the 1st fraction, since 25 × 16 = 400,
    45/25 = 45 × 16/25 × 16 = 720/400
  3. Likewise, for the 2nd fraction, since 80 × 5 = 400,
    63/80 = 63 × 5/80 × 5 = 315/400
  4. Subtract the two like fractions:
    720/400 - 315/400 = 720 - 315/400 = 405/400
  5. After reducing the fraction, the answer is 81/80
  6. In mixed form: 11/80

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