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Add 40/30 and 18/28

1st number: 1 10/30, 2nd number: 18/28

40/30 + 18/28 is 83/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 28 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 30 × 14 = 420,
    40/30 = 40 × 14/30 × 14 = 560/420
  3. Likewise, for the 2nd fraction, since 28 × 15 = 420,
    18/28 = 18 × 15/28 × 15 = 270/420
  4. Add the two like fractions:
    560/420 + 270/420 = 560 + 270/420 = 830/420
  5. 830/420 simplified gives 83/42
  6. So, 40/30 + 18/28 = 83/42
    In mixed form: 141/42

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