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Add 3/42 and 27/15

1st number: 3/42, 2nd number: 1 12/15

3/42 + 27/15 is 131/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 15 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 42 × 5 = 210,
    3/42 = 3 × 5/42 × 5 = 15/210
  3. Likewise, for the 2nd fraction, since 15 × 14 = 210,
    27/15 = 27 × 14/15 × 14 = 378/210
  4. Add the two like fractions:
    15/210 + 378/210 = 15 + 378/210 = 393/210
  5. 393/210 simplified gives 131/70
  6. So, 3/42 + 27/15 = 131/70
    In mixed form: 161/70

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