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Subtract 45/42 from 8/15

1st number: 8/15, 2nd number: 1 3/42

8/15 - 45/42 is -113/210.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 42 is 210
  2. For the 1st fraction, since 15 × 14 = 210,
    8/15 = 8 × 14/15 × 14 = 112/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    45/42 = 45 × 5/42 × 5 = 225/210
  4. Subtract the two fractions:
    112/210 - 225/210 = 112 - 225/210 = -113/210

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