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Add 15/35 and 9/60

15/35 + 9/60 is 81/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 60 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 35 × 12 = 420,
    15/35 = 15 × 12/35 × 12 = 180/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    9/60 = 9 × 7/60 × 7 = 63/420
  4. Add the two like fractions:
    180/420 + 63/420 = 180 + 63/420 = 243/420
  5. 243/420 simplified gives 81/140
  6. So, 15/35 + 9/60 = 81/140

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