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Add 12/20 and 72/7

1st number: 12/20, 2nd number: 10 2/7

12/20 + 72/7 is 381/35.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    12/20 = 12 × 7/20 × 7 = 84/140
  3. Likewise, for the 2nd fraction, since 7 × 20 = 140,
    72/7 = 72 × 20/7 × 20 = 1440/140
  4. Add the two like fractions:
    84/140 + 1440/140 = 84 + 1440/140 = 1524/140
  5. 1524/140 simplified gives 381/35
  6. So, 12/20 + 72/7 = 381/35
    In mixed form: 1031/35

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