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Add 42/15 and 9/90

1st number: 2 12/15, 2nd number: 9/90

42/15 + 9/90 is 29/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 90 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 90 × 1 = 90,
    9/90 = 9 × 1/90 × 1 = 9/90
  4. Add the two like fractions:
    252/90 + 9/90 = 252 + 9/90 = 261/90
  5. 261/90 simplified gives 29/10
  6. So, 42/15 + 9/90 = 29/10
    In mixed form: 29/10

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