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Subtract 21/5 from 7/75

1st number: 7/75, 2nd number: 4 1/5

7/75 - 21/5 is -308/75.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 5 is 75

    Next, find the equivalent fraction of both fractional numbers with denominator 75
  2. For the 1st fraction, since 75 × 1 = 75,
    7/75 = 7 × 1/75 × 1 = 7/75
  3. Likewise, for the 2nd fraction, since 5 × 15 = 75,
    21/5 = 21 × 15/5 × 15 = 315/75
  4. Subtract the two like fractions:
    7/75 - 315/75 = 7 - 315/75 = -308/75

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