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Subtract 8/30 from 3/90

3/90 - 8/30 is -7/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 30 is 90
  2. For the 1st fraction, since 90 × 1 = 90,
    3/90 = 3 × 1/90 × 1 = 3/90
  3. Likewise, for the 2nd fraction, since 30 × 3 = 90,
    8/30 = 8 × 3/30 × 3 = 24/90
  4. Subtract the two fractions:
    3/90 - 24/90 = 3 - 24/90 = -21/90
  5. After reducing the fraction, the answer is -7/30

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