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Add 18/72 and 5/7

18/72 + 5/7 is 27/28.

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,
    18/72 = 18 × 7/72 × 7 = 126/504
  3. Likewise, for the 2nd fraction, since 7 × 72 = 504,
    5/7 = 5 × 72/7 × 72 = 360/504
  4. Add the two like fractions:
    126/504 + 360/504 = 126 + 360/504 = 486/504
  5. 486/504 simplified gives 27/28
  6. So, 18/72 + 5/7 = 27/28

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