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Add 12/60 and 21/9

1st number: 12/60, 2nd number: 2 3/9

12/60 + 21/9 is 38/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 9 is 180
  2. For the 1st fraction, since 60 × 3 = 180,
    12/60 = 12 × 3/60 × 3 = 36/180
  3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
    21/9 = 21 × 20/9 × 20 = 420/180
  4. Add the two fractions:
    36/180 + 420/180 = 36 + 420/180 = 456/180
  5. 456/180 simplified gives 38/15
  6. So, 12/60 + 21/9 = 38/15
    In mixed form: 28/15

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