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Add 12/84 and 45/70

12/84 + 45/70 is 11/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 70 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 84 × 5 = 420,
    12/84 = 12 × 5/84 × 5 = 60/420
  3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
    45/70 = 45 × 6/70 × 6 = 270/420
  4. Add the two like fractions:
    60/420 + 270/420 = 60 + 270/420 = 330/420
  5. 330/420 simplified gives 11/14
  6. So, 12/84 + 45/70 = 11/14

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