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Add 16/72 and 15/21

16/72 + 15/21 is 59/63.

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,
    16/72 = 16 × 7/72 × 7 = 112/504
  3. Likewise, for the 2nd fraction, since 21 × 24 = 504,
    15/21 = 15 × 24/21 × 24 = 360/504
  4. Add the two like fractions:
    112/504 + 360/504 = 112 + 360/504 = 472/504
  5. 472/504 simplified gives 59/63
  6. So, 16/72 + 15/21 = 59/63

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