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Subtract 7/8 from 10/30

10/30 - 7/8 is -13/24.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 8 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 30 × 4 = 120,
    10/30 = 10 × 4/30 × 4 = 40/120
  3. Likewise, for the 2nd fraction, since 8 × 15 = 120,
    7/8 = 7 × 15/8 × 15 = 105/120
  4. Subtract the two like fractions:
    40/120 - 105/120 = 40 - 105/120 = -65/120
  5. After reducing the fraction, the answer is -13/24

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