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Add 15/40 and 7/9

15/40 + 7/9 is 83/72.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 9 is 360
  2. For the 1st fraction, since 40 × 9 = 360,
    15/40 = 15 × 9/40 × 9 = 135/360
  3. Likewise, for the 2nd fraction, since 9 × 40 = 360,
    7/9 = 7 × 40/9 × 40 = 280/360
  4. Add the two fractions:
    135/360 + 280/360 = 135 + 280/360 = 415/360
  5. After reducing the fraction, the answer is 83/72
  6. In mixed form: 111/72

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