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Add 9/15 and 42/72

9/15 + 42/72 is 71/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 15 × 24 = 360,
    9/15 = 9 × 24/15 × 24 = 216/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    42/72 = 42 × 5/72 × 5 = 210/360
  4. Add the two like fractions:
    216/360 + 210/360 = 216 + 210/360 = 426/360
  5. 426/360 simplified gives 71/60
  6. So, 9/15 + 42/72 = 71/60
    In mixed form: 111/60

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