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Subtract 6/90 from 21/32

21/32 - 6/90 is 283/480.

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,
    21/32 = 21 × 45/32 × 45 = 945/1440
  3. Likewise, for the 2nd fraction, since 90 × 16 = 1440,
    6/90 = 6 × 16/90 × 16 = 96/1440
  4. Subtract the two like fractions:
    945/1440 - 96/1440 = 945 - 96/1440 = 849/1440
  5. After reducing the fraction, the answer is 283/480

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