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Add 40/21 and 30/36

1st number: 1 19/21, 2nd number: 30/36

40/21 + 30/36 is 115/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 36 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 21 × 12 = 252,
    40/21 = 40 × 12/21 × 12 = 480/252
  3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
    30/36 = 30 × 7/36 × 7 = 210/252
  4. Add the two like fractions:
    480/252 + 210/252 = 480 + 210/252 = 690/252
  5. 690/252 simplified gives 115/42
  6. So, 40/21 + 30/36 = 115/42
    In mixed form: 231/42

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