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Add 4/12 and 45/70

4/12 + 45/70 is 41/42.

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,
    4/12 = 4 × 35/12 × 35 = 140/420
  3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
    45/70 = 45 × 6/70 × 6 = 270/420
  4. Add the two like fractions:
    140/420 + 270/420 = 140 + 270/420 = 410/420
  5. 410/420 simplified gives 41/42
  6. So, 4/12 + 45/70 = 41/42

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