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Subtract 5/63 from 7/15

7/15 - 5/63 is 122/315.

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,
    7/15 = 7 × 21/15 × 21 = 147/315
  3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
    5/63 = 5 × 5/63 × 5 = 25/315
  4. Subtract the two fractions:
    147/315 - 25/315 = 147 - 25/315 = 122/315

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