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Subtract 9/7 from 1/10

1st number: 1/10, 2nd number: 1 2/7

1/10 - 9/7 is -83/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 7 is 70

    Next, find the equivalent fraction of both fractional numbers with denominator 70
  2. For the 1st fraction, since 10 × 7 = 70,
    1/10 = 1 × 7/10 × 7 = 7/70
  3. Likewise, for the 2nd fraction, since 7 × 10 = 70,
    9/7 = 9 × 10/7 × 10 = 90/70
  4. Subtract the two like fractions:
    7/70 - 90/70 = 7 - 90/70 = -83/70

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