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Subtract 8/20 from 7/4

1st number: 1 3/4, 2nd number: 8/20

7/4 - 8/20 is 27/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 20 is 20
  2. For the 1st fraction, since 4 × 5 = 20,
    7/4 = 7 × 5/4 × 5 = 35/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    8/20 = 8 × 1/20 × 1 = 8/20
  4. Subtract the two fractions:
    35/20 - 8/20 = 35 - 8/20 = 27/20
  5. In mixed form: 17/20

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