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Subtract 4/20 from 1/30

1/30 - 4/20 is -1/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 20 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 30 × 2 = 60,
    1/30 = 1 × 2/30 × 2 = 2/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    4/20 = 4 × 3/20 × 3 = 12/60
  4. Subtract the two like fractions:
    2/60 - 12/60 = 2 - 12/60 = -10/60
  5. After reducing the fraction, the answer is -1/6

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