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Add 12/72 and 1/7

12/72 + 1/7 is 13/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 7 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    12/72 = 12 × 7/72 × 7 = 84/504
  3. Likewise, for the 2nd fraction, since 7 × 72 = 504,
    1/7 = 1 × 72/7 × 72 = 72/504
  4. Add the two like fractions:
    84/504 + 72/504 = 84 + 72/504 = 156/504
  5. 156/504 simplified gives 13/42
  6. So, 12/72 + 1/7 = 13/42

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