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Add 3/45 and 21/12

1st number: 3/45, 2nd number: 1 9/12

3/45 + 21/12 is 109/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 12 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 45 × 4 = 180,
    3/45 = 3 × 4/45 × 4 = 12/180
  3. Likewise, for the 2nd fraction, since 12 × 15 = 180,
    21/12 = 21 × 15/12 × 15 = 315/180
  4. Add the two like fractions:
    12/180 + 315/180 = 12 + 315/180 = 327/180
  5. 327/180 simplified gives 109/60
  6. So, 3/45 + 21/12 = 109/60
    In mixed form: 149/60

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