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Subtract 16/63 from 7/20

7/20 - 16/63 is 121/1260.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 63 is 1260
  2. For the 1st fraction, since 20 × 63 = 1260,
    7/20 = 7 × 63/20 × 63 = 441/1260
  3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
    16/63 = 16 × 20/63 × 20 = 320/1260
  4. Subtract the two fractions:
    441/1260 - 320/1260 = 441 - 320/1260 = 121/1260

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