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Subtract 27/20 from 4/70

1st number: 4/70, 2nd number: 1 7/20

4/70 - 27/20 is -181/140.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 70 × 2 = 140,
    4/70 = 4 × 2/70 × 2 = 8/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    27/20 = 27 × 7/20 × 7 = 189/140
  4. Subtract the two like fractions:
    8/140 - 189/140 = 8 - 189/140 = -181/140

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