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Add 9/28 and 4/60

9/28 + 4/60 is 163/420.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 60 is 420
  2. For the 1st fraction, since 28 × 15 = 420,
    9/28 = 9 × 15/28 × 15 = 135/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    4/60 = 4 × 7/60 × 7 = 28/420
  4. Add the two fractions:
    135/420 + 28/420 = 135 + 28/420 = 163/420

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