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Subtract 3/90 from 28/32

28/32 - 3/90 is 101/120.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 1440
  2. For the 1st fraction, since 32 × 45 = 1440,
    28/32 = 28 × 45/32 × 45 = 1260/1440
  3. Likewise, for the 2nd fraction, since 90 × 16 = 1440,
    3/90 = 3 × 16/90 × 16 = 48/1440
  4. Subtract the two like fractions:
    1260/1440 - 48/1440 = 1260 - 48/1440 = 1212/1440
  5. After reducing the fraction, the answer is 101/120

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