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Add 42/72 and 18/84

42/72 + 18/84 is 67/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 84 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    42/72 = 42 × 7/72 × 7 = 294/504
  3. Likewise, for the 2nd fraction, since 84 × 6 = 504,
    18/84 = 18 × 6/84 × 6 = 108/504
  4. Add the two like fractions:
    294/504 + 108/504 = 294 + 108/504 = 402/504
  5. 402/504 simplified gives 67/84
  6. So, 42/72 + 18/84 = 67/84

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