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Add 28/15 and 42/12

1st number: 1 13/15, 2nd number: 3 6/12

28/15 + 42/12 is 161/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 12 is 60
  2. For the 1st fraction, since 15 × 4 = 60,
    28/15 = 28 × 4/15 × 4 = 112/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    42/12 = 42 × 5/12 × 5 = 210/60
  4. Add the two fractions:
    112/60 + 210/60 = 112 + 210/60 = 322/60
  5. 322/60 simplified gives 161/30
  6. So, 28/15 + 42/12 = 161/30
    In mixed form: 511/30

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