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Add 21/35 and 7/12

21/35 + 7/12 is 71/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 12 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 35 × 12 = 420,
    21/35 = 21 × 12/35 × 12 = 252/420
  3. Likewise, for the 2nd fraction, since 12 × 35 = 420,
    7/12 = 7 × 35/12 × 35 = 245/420
  4. Add the two like fractions:
    252/420 + 245/420 = 252 + 245/420 = 497/420
  5. 497/420 simplified gives 71/60
  6. So, 21/35 + 7/12 = 71/60
    In mixed form: 111/60

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