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Subtract 20/24 from 1/30

1/30 - 20/24 is -4/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 24 is 120
  2. For the 1st fraction, since 30 × 4 = 120,
    1/30 = 1 × 4/30 × 4 = 4/120
  3. Likewise, for the 2nd fraction, since 24 × 5 = 120,
    20/24 = 20 × 5/24 × 5 = 100/120
  4. Subtract the two fractions:
    4/120 - 100/120 = 4 - 100/120 = -96/120
  5. After reducing the fraction, the answer is -4/5

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