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Subtract 3/5 from 27/21

1st number: 1 6/21, 2nd number: 3/5

27/21 - 3/5 is 24/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 5 is 105

    Next, find the equivalent fraction of both fractional numbers with denominator 105
  2. For the 1st fraction, since 21 × 5 = 105,
    27/21 = 27 × 5/21 × 5 = 135/105
  3. Likewise, for the 2nd fraction, since 5 × 21 = 105,
    3/5 = 3 × 21/5 × 21 = 63/105
  4. Subtract the two like fractions:
    135/105 - 63/105 = 135 - 63/105 = 72/105
  5. After reducing the fraction, the answer is 24/35

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