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Add 12/7 and 12/20

1st number: 1 5/7, 2nd number: 12/20

12/7 + 12/20 is 81/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 7 × 20 = 140,
    12/7 = 12 × 20/7 × 20 = 240/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    12/20 = 12 × 7/20 × 7 = 84/140
  4. Add the two like fractions:
    240/140 + 84/140 = 240 + 84/140 = 324/140
  5. 324/140 simplified gives 81/35
  6. So, 12/7 + 12/20 = 81/35
    In mixed form: 211/35

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