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Add 15/18 and 9/56

15/18 + 9/56 is 167/168.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 56 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 18 × 28 = 504,
    15/18 = 15 × 28/18 × 28 = 420/504
  3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
    9/56 = 9 × 9/56 × 9 = 81/504
  4. Add the two like fractions:
    420/504 + 81/504 = 420 + 81/504 = 501/504
  5. 501/504 simplified gives 167/168
  6. So, 15/18 + 9/56 = 167/168

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