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Add 18/42 and 14/60

18/42 + 14/60 is 139/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 60 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 42 × 10 = 420,
    18/42 = 18 × 10/42 × 10 = 180/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    14/60 = 14 × 7/60 × 7 = 98/420
  4. Add the two like fractions:
    180/420 + 98/420 = 180 + 98/420 = 278/420
  5. 278/420 simplified gives 139/210
  6. So, 18/42 + 14/60 = 139/210

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