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Add 15/56 and 15/72

15/56 + 15/72 is 10/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 72 is 504
  2. For the 1st fraction, since 56 × 9 = 504,
    15/56 = 15 × 9/56 × 9 = 135/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    15/72 = 15 × 7/72 × 7 = 105/504
  4. Add the two fractions:
    135/504 + 105/504 = 135 + 105/504 = 240/504
  5. 240/504 simplified gives 10/21
  6. So, 15/56 + 15/72 = 10/21

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