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Subtract 15/5 from 10/8

1st number: 1 2/8, 2nd number: 3 0/5

10/8 - 15/5 is -7/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 5 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 8 × 5 = 40,
    10/8 = 10 × 5/8 × 5 = 50/40
  3. Likewise, for the 2nd fraction, since 5 × 8 = 40,
    15/5 = 15 × 8/5 × 8 = 120/40
  4. Subtract the two like fractions:
    50/40 - 120/40 = 50 - 120/40 = -70/40
  5. After reducing the fraction, the answer is -7/4

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