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Subtract 7/63 from 18/15

1st number: 1 3/15, 2nd number: 7/63

18/15 - 7/63 is 49/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 63 is 315
  2. For the 1st fraction, since 15 × 21 = 315,
    18/15 = 18 × 21/15 × 21 = 378/315
  3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
    7/63 = 7 × 5/63 × 5 = 35/315
  4. Subtract the two fractions:
    378/315 - 35/315 = 378 - 35/315 = 343/315
  5. After reducing the fraction, the answer is 49/45
  6. In mixed form: 14/45

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