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Add 9/15 and 72/90

9/15 + 72/90 is 7/5.

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,
    9/15 = 9 × 6/15 × 6 = 54/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    72/90 = 72 × 1/90 × 1 = 72/90
  4. Add the two like fractions:
    54/90 + 72/90 = 54 + 72/90 = 126/90
  5. 126/90 simplified gives 7/5
  6. So, 9/15 + 72/90 = 7/5
    In mixed form: 12/5

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