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Subtract 15/30 from 7/8

7/8 - 15/30 is 3/8.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 8 × 15 = 120,
    7/8 = 7 × 15/8 × 15 = 105/120
  3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
    15/30 = 15 × 4/30 × 4 = 60/120
  4. Subtract the two like fractions:
    105/120 - 60/120 = 105 - 60/120 = 45/120
  5. After reducing the fraction, the answer is 3/8

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