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Add 81/42 and 70/16

1st number: 1 39/42, 2nd number: 4 6/16

81/42 + 70/16 is 353/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 16 is 336
  2. For the 1st fraction, since 42 × 8 = 336,
    81/42 = 81 × 8/42 × 8 = 648/336
  3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
    70/16 = 70 × 21/16 × 21 = 1470/336
  4. Add the two fractions:
    648/336 + 1470/336 = 648 + 1470/336 = 2118/336
  5. 2118/336 simplified gives 353/56
  6. So, 81/42 + 70/16 = 353/56
    In mixed form: 617/56

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