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Add 84/7 and 15/8

1st number: 12 0/7, 2nd number: 1 7/8

84/7 + 15/8 is 111/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 8 is 56

    Next, find the equivalent fraction of both fractional numbers with denominator 56
  2. For the 1st fraction, since 7 × 8 = 56,
    84/7 = 84 × 8/7 × 8 = 672/56
  3. Likewise, for the 2nd fraction, since 8 × 7 = 56,
    15/8 = 15 × 7/8 × 7 = 105/56
  4. Add the two like fractions:
    672/56 + 105/56 = 672 + 105/56 = 777/56
  5. 777/56 simplified gives 111/8
  6. So, 84/7 + 15/8 = 111/8
    In mixed form: 137/8

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