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Add 30/35 and 21/36

30/35 + 21/36 is 121/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 36 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 35 × 36 = 1260,
    30/35 = 30 × 36/35 × 36 = 1080/1260
  3. Likewise, for the 2nd fraction, since 36 × 35 = 1260,
    21/36 = 21 × 35/36 × 35 = 735/1260
  4. Add the two like fractions:
    1080/1260 + 735/1260 = 1080 + 735/1260 = 1815/1260
  5. 1815/1260 simplified gives 121/84
  6. So, 30/35 + 21/36 = 121/84
    In mixed form: 137/84

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