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Subtract 30/27 from 1/70

1st number: 1/70, 2nd number: 1 3/27

1/70 - 30/27 is -691/630.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 27 is 1890

    Next, find the equivalent fraction of both fractional numbers with denominator 1890
  2. For the 1st fraction, since 70 × 27 = 1890,
    1/70 = 1 × 27/70 × 27 = 27/1890
  3. Likewise, for the 2nd fraction, since 27 × 70 = 1890,
    30/27 = 30 × 70/27 × 70 = 2100/1890
  4. Subtract the two like fractions:
    27/1890 - 2100/1890 = 27 - 2100/1890 = -2073/1890
  5. After reducing the fraction, the answer is -691/630

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