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Add 28/72 and 9/30

28/72 + 9/30 is 31/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 30 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    28/72 = 28 × 5/72 × 5 = 140/360
  3. Likewise, for the 2nd fraction, since 30 × 12 = 360,
    9/30 = 9 × 12/30 × 12 = 108/360
  4. Add the two like fractions:
    140/360 + 108/360 = 140 + 108/360 = 248/360
  5. 248/360 simplified gives 31/45
  6. So, 28/72 + 9/30 = 31/45

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