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Add 15/36 and 12/40

15/36 + 12/40 is 43/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 40 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 36 × 10 = 360,
    15/36 = 15 × 10/36 × 10 = 150/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    12/40 = 12 × 9/40 × 9 = 108/360
  4. Add the two like fractions:
    150/360 + 108/360 = 150 + 108/360 = 258/360
  5. 258/360 simplified gives 43/60
  6. So, 15/36 + 12/40 = 43/60

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