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Add 15/25 and 20/30

15/25 + 20/30 is 19/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 30 is 150

    Next, find the equivalent fraction of both fractional numbers with denominator 150
  2. For the 1st fraction, since 25 × 6 = 150,
    15/25 = 15 × 6/25 × 6 = 90/150
  3. Likewise, for the 2nd fraction, since 30 × 5 = 150,
    20/30 = 20 × 5/30 × 5 = 100/150
  4. Add the two like fractions:
    90/150 + 100/150 = 90 + 100/150 = 190/150
  5. 190/150 simplified gives 19/15
  6. So, 15/25 + 20/30 = 19/15
    In mixed form: 14/15

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