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Subtract 21/45 from 75/25

1st number: 3 0/25, 2nd number: 21/45

75/25 - 21/45 is 38/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 45 is 225

    Next, find the equivalent fraction of both fractional numbers with denominator 225
  2. For the 1st fraction, since 25 × 9 = 225,
    75/25 = 75 × 9/25 × 9 = 675/225
  3. Likewise, for the 2nd fraction, since 45 × 5 = 225,
    21/45 = 21 × 5/45 × 5 = 105/225
  4. Subtract the two like fractions:
    675/225 - 105/225 = 675 - 105/225 = 570/225
  5. After reducing the fraction, the answer is 38/15
  6. In mixed form: 28/15

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