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Add 70/12 and 21/27

1st number: 5 10/12, 2nd number: 21/27

70/12 + 21/27 is 119/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 27 is 108

    Next, find the equivalent fraction of both fractional numbers with denominator 108
  2. For the 1st fraction, since 12 × 9 = 108,
    70/12 = 70 × 9/12 × 9 = 630/108
  3. Likewise, for the 2nd fraction, since 27 × 4 = 108,
    21/27 = 21 × 4/27 × 4 = 84/108
  4. Add the two like fractions:
    630/108 + 84/108 = 630 + 84/108 = 714/108
  5. 714/108 simplified gives 119/18
  6. So, 70/12 + 21/27 = 119/18
    In mixed form: 611/18

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