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Add 18/42 and 56/60

18/42 + 56/60 is 143/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 60 is 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,
    56/60 = 56 × 7/60 × 7 = 392/420
  4. Add the two fractions:
    180/420 + 392/420 = 180 + 392/420 = 572/420
  5. After reducing the fraction, the answer is 143/105
  6. In mixed form: 138/105

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