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Add 7/30 and 15/90

7/30 + 15/90 is 2/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 90 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 30 × 3 = 90,
    7/30 = 7 × 3/30 × 3 = 21/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    15/90 = 15 × 1/90 × 1 = 15/90
  4. Add the two like fractions:
    21/90 + 15/90 = 21 + 15/90 = 36/90
  5. 36/90 simplified gives 2/5
  6. So, 7/30 + 15/90 = 2/5

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