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Add 27/12 and 12/90

1st number: 2 3/12, 2nd number: 12/90

27/12 + 12/90 is 143/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 12 × 15 = 180,
    27/12 = 27 × 15/12 × 15 = 405/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    12/90 = 12 × 2/90 × 2 = 24/180
  4. Add the two like fractions:
    405/180 + 24/180 = 405 + 24/180 = 429/180
  5. 429/180 simplified gives 143/60
  6. So, 27/12 + 12/90 = 143/60
    In mixed form: 223/60

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