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Add 3/30 and 81/40

1st number: 3/30, 2nd number: 2 1/40

3/30 + 81/40 is 17/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 40 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 30 × 4 = 120,
    3/30 = 3 × 4/30 × 4 = 12/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    81/40 = 81 × 3/40 × 3 = 243/120
  4. Add the two like fractions:
    12/120 + 243/120 = 12 + 243/120 = 255/120
  5. 255/120 simplified gives 17/8
  6. So, 3/30 + 81/40 = 17/8
    In mixed form: 21/8

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