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Add 12/42 and 27/72

12/42 + 27/72 is 37/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 72 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 42 × 12 = 504,
    12/42 = 12 × 12/42 × 12 = 144/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    27/72 = 27 × 7/72 × 7 = 189/504
  4. Add the two like fractions:
    144/504 + 189/504 = 144 + 189/504 = 333/504
  5. 333/504 simplified gives 37/56
  6. So, 12/42 + 27/72 = 37/56

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