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Subtract 25/8 from 7/30

1st number: 7/30, 2nd number: 3 1/8

7/30 - 25/8 is -347/120.

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,
    7/30 = 7 × 4/30 × 4 = 28/120
  3. Likewise, for the 2nd fraction, since 8 × 15 = 120,
    25/8 = 25 × 15/8 × 15 = 375/120
  4. Subtract the two like fractions:
    28/120 - 375/120 = 28 - 375/120 = -347/120

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