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Add 6/21 and 9/72

6/21 + 9/72 is 23/56.

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,
    6/21 = 6 × 24/21 × 24 = 144/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    9/72 = 9 × 7/72 × 7 = 63/504
  4. Add the two like fractions:
    144/504 + 63/504 = 144 + 63/504 = 207/504
  5. 207/504 simplified gives 23/56
  6. So, 6/21 + 9/72 = 23/56

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