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Add 45/12 and 16/70

1st number: 3 9/12, 2nd number: 16/70

45/12 + 16/70 is 557/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 70 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 12 × 35 = 420,
    45/12 = 45 × 35/12 × 35 = 1575/420
  3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
    16/70 = 16 × 6/70 × 6 = 96/420
  4. Add the two like fractions:
    1575/420 + 96/420 = 1575 + 96/420 = 1671/420
  5. 1671/420 simplified gives 557/140
  6. So, 45/12 + 16/70 = 557/140
    In mixed form: 3137/140

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