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Subtract 3/81 from 45/25

1st number: 1 20/25, 2nd number: 3/81

45/25 - 3/81 is 238/135.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 81 is 2025
  2. For the 1st fraction, since 25 × 81 = 2025,
    45/25 = 45 × 81/25 × 81 = 3645/2025
  3. Likewise, for the 2nd fraction, since 81 × 25 = 2025,
    3/81 = 3 × 25/81 × 25 = 75/2025
  4. Subtract the two fractions:
    3645/2025 - 75/2025 = 3645 - 75/2025 = 3570/2025
  5. After reducing the fraction, the answer is 238/135
  6. In mixed form: 1103/135

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