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Add 28/30 and 4/40

28/30 + 4/40 is 31/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 40 is 120
  2. For the 1st fraction, since 30 × 4 = 120,
    28/30 = 28 × 4/30 × 4 = 112/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    4/40 = 4 × 3/40 × 3 = 12/120
  4. Add the two fractions:
    112/120 + 12/120 = 112 + 12/120 = 124/120
  5. 124/120 simplified gives 31/30
  6. So, 28/30 + 4/40 = 31/30
    In mixed form: 11/30

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