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Add 18/28 and 60/72

18/28 + 60/72 is 31/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 72 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 28 × 18 = 504,
    18/28 = 18 × 18/28 × 18 = 324/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    60/72 = 60 × 7/72 × 7 = 420/504
  4. Add the two like fractions:
    324/504 + 420/504 = 324 + 420/504 = 744/504
  5. 744/504 simplified gives 31/21
  6. So, 18/28 + 60/72 = 31/21
    In mixed form: 110/21

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