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Add 7/72 and 18/21

7/72 + 18/21 is 481/504.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 21 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    7/72 = 7 × 7/72 × 7 = 49/504
  3. Likewise, for the 2nd fraction, since 21 × 24 = 504,
    18/21 = 18 × 24/21 × 24 = 432/504
  4. Add the two like fractions:
    49/504 + 432/504 = 49 + 432/504 = 481/504
  5. So, 7/72 + 18/21 = 481/504

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