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Add 54/60 and 25/28

54/60 + 25/28 is 251/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 28 is 420
  2. For the 1st fraction, since 60 × 7 = 420,
    54/60 = 54 × 7/60 × 7 = 378/420
  3. Likewise, for the 2nd fraction, since 28 × 15 = 420,
    25/28 = 25 × 15/28 × 15 = 375/420
  4. Add the two fractions:
    378/420 + 375/420 = 378 + 375/420 = 753/420
  5. After reducing the fraction, the answer is 251/140
  6. In mixed form: 1111/140

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