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Subtract 21/18 from 49/60

1st number: 49/60, 2nd number: 1 3/18

49/60 - 21/18 is -7/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 18 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 60 × 3 = 180,
    49/60 = 49 × 3/60 × 3 = 147/180
  3. Likewise, for the 2nd fraction, since 18 × 10 = 180,
    21/18 = 21 × 10/18 × 10 = 210/180
  4. Subtract the two like fractions:
    147/180 - 210/180 = 147 - 210/180 = -63/180
  5. After reducing the fraction, the answer is -7/20

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