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Add 7/21 and 16/72

7/21 + 16/72 is 5/9.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 21 × 24 = 504,
    7/21 = 7 × 24/21 × 24 = 168/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    16/72 = 16 × 7/72 × 7 = 112/504
  4. Add the two like fractions:
    168/504 + 112/504 = 168 + 112/504 = 280/504
  5. 280/504 simplified gives 5/9
  6. So, 7/21 + 16/72 = 5/9

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