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Subtract 12/10 from 1/8

1st number: 1/8, 2nd number: 1 2/10

1/8 - 12/10 is -43/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 10 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 8 × 5 = 40,
    1/8 = 1 × 5/8 × 5 = 5/40
  3. Likewise, for the 2nd fraction, since 10 × 4 = 40,
    12/10 = 12 × 4/10 × 4 = 48/40
  4. Subtract the two like fractions:
    5/40 - 48/40 = 5 - 48/40 = -43/40

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