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Add 15/60 and 21/9

1st number: 15/60, 2nd number: 2 3/9

15/60 + 21/9 is 31/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 9 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 60 × 3 = 180,
    15/60 = 15 × 3/60 × 3 = 45/180
  3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
    21/9 = 21 × 20/9 × 20 = 420/180
  4. Add the two like fractions:
    45/180 + 420/180 = 45 + 420/180 = 465/180
  5. 465/180 simplified gives 31/12
  6. So, 15/60 + 21/9 = 31/12
    In mixed form: 27/12

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