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Add 30/18 and 3/40

1st number: 1 12/18, 2nd number: 3/40

30/18 + 3/40 is 209/120.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 40 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 18 × 20 = 360,
    30/18 = 30 × 20/18 × 20 = 600/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    3/40 = 3 × 9/40 × 9 = 27/360
  4. Add the two like fractions:
    600/360 + 27/360 = 600 + 27/360 = 627/360
  5. 627/360 simplified gives 209/120
  6. So, 30/18 + 3/40 = 209/120
    In mixed form: 189/120

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