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Subtract 45/32 from 70/90

1st number: 70/90, 2nd number: 1 13/32

70/90 - 45/32 is -181/288.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 32 is 1440

    Next, find the equivalent fraction of both fractional numbers with denominator 1440
  2. For the 1st fraction, since 90 × 16 = 1440,
    70/90 = 70 × 16/90 × 16 = 1120/1440
  3. Likewise, for the 2nd fraction, since 32 × 45 = 1440,
    45/32 = 45 × 45/32 × 45 = 2025/1440
  4. Subtract the two like fractions:
    1120/1440 - 2025/1440 = 1120 - 2025/1440 = -905/1440
  5. After reducing the fraction, the answer is -181/288

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