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Add 30/40 and 30/80

30/40 + 30/80 is 9/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 80 is 80
  2. For the 1st fraction, since 40 × 2 = 80,
    30/40 = 30 × 2/40 × 2 = 60/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    30/80 = 30 × 1/80 × 1 = 30/80
  4. Add the two fractions:
    60/80 + 30/80 = 60 + 30/80 = 90/80
  5. 90/80 simplified gives 9/8
  6. So, 30/40 + 30/80 = 9/8
    In mixed form: 11/8

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