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Add 42/15 and 28/18

1st number: 2 12/15, 2nd number: 1 10/18

42/15 + 28/18 is 196/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 18 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 15 × 6 = 90,
    42/15 = 42 × 6/15 × 6 = 252/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    28/18 = 28 × 5/18 × 5 = 140/90
  4. Add the two like fractions:
    252/90 + 140/90 = 252 + 140/90 = 392/90
  5. 392/90 simplified gives 196/45
  6. So, 42/15 + 28/18 = 196/45
    In mixed form: 416/45

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