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Add 7/15 and 81/90

7/15 + 81/90 is 41/30.

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,
    7/15 = 7 × 6/15 × 6 = 42/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    81/90 = 81 × 1/90 × 1 = 81/90
  4. Add the two like fractions:
    42/90 + 81/90 = 42 + 81/90 = 123/90
  5. 123/90 simplified gives 41/30
  6. So, 7/15 + 81/90 = 41/30
    In mixed form: 111/30

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