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Subtract 70/20 from 1/15

1st number: 1/15, 2nd number: 3 10/20

1/15 - 70/20 is -103/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 20 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 15 × 4 = 60,
    1/15 = 1 × 4/15 × 4 = 4/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    70/20 = 70 × 3/20 × 3 = 210/60
  4. Subtract the two like fractions:
    4/60 - 210/60 = 4 - 210/60 = -206/60
  5. After reducing the fraction, the answer is -103/30

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