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Subtract 1/16 from 21/45

21/45 - 1/16 is 97/240.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 16 is 720
  2. For the 1st fraction, since 45 × 16 = 720,
    21/45 = 21 × 16/45 × 16 = 336/720
  3. Likewise, for the 2nd fraction, since 16 × 45 = 720,
    1/16 = 1 × 45/16 × 45 = 45/720
  4. Subtract the two fractions:
    336/720 - 45/720 = 336 - 45/720 = 291/720
  5. After reducing the fraction, the answer is 97/240

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