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Add 42/70 and 1/12

42/70 + 1/12 is 41/60.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 70 × 6 = 420,
    42/70 = 42 × 6/70 × 6 = 252/420
  3. Likewise, for the 2nd fraction, since 12 × 35 = 420,
    1/12 = 1 × 35/12 × 35 = 35/420
  4. Add the two like fractions:
    252/420 + 35/420 = 252 + 35/420 = 287/420
  5. 287/420 simplified gives 41/60
  6. So, 42/70 + 1/12 = 41/60

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