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Add 15/35 and 20/12

1st number: 15/35, 2nd number: 1 8/12

15/35 + 20/12 is 44/21.

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,
    15/35 = 15 × 12/35 × 12 = 180/420
  3. Likewise, for the 2nd fraction, since 12 × 35 = 420,
    20/12 = 20 × 35/12 × 35 = 700/420
  4. Add the two like fractions:
    180/420 + 700/420 = 180 + 700/420 = 880/420
  5. 880/420 simplified gives 44/21
  6. So, 15/35 + 20/12 = 44/21
    In mixed form: 22/21

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