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Add 21/72 and 35/56

21/72 + 35/56 is 11/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 56 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    21/72 = 21 × 7/72 × 7 = 147/504
  3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
    35/56 = 35 × 9/56 × 9 = 315/504
  4. Add the two like fractions:
    147/504 + 315/504 = 147 + 315/504 = 462/504
  5. 462/504 simplified gives 11/12
  6. So, 21/72 + 35/56 = 11/12

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