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Add 28/40 and 9/30

28/40 + 9/30 is 1/1.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 30 is 120
  2. For the 1st fraction, since 40 × 3 = 120,
    28/40 = 28 × 3/40 × 3 = 84/120
  3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
    9/30 = 9 × 4/30 × 4 = 36/120
  4. Add the two fractions:
    84/120 + 36/120 = 84 + 36/120 = 120/120
  5. 120/120 simplified gives 1/1
  6. So, 28/40 + 9/30 = 1/1

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