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Add 27/12 and 21/20

1st number: 2 3/12, 2nd number: 1 1/20

27/12 + 21/20 is 33/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 20 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 12 × 5 = 60,
    27/12 = 27 × 5/12 × 5 = 135/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    21/20 = 21 × 3/20 × 3 = 63/60
  4. Add the two like fractions:
    135/60 + 63/60 = 135 + 63/60 = 198/60
  5. 198/60 simplified gives 33/10
  6. So, 27/12 + 21/20 = 33/10
    In mixed form: 33/10

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