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Add 12/35 and 42/60

12/35 + 42/60 is 73/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 60 is 420
  2. For the 1st fraction, since 35 × 12 = 420,
    12/35 = 12 × 12/35 × 12 = 144/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    42/60 = 42 × 7/60 × 7 = 294/420
  4. Add the two fractions:
    144/420 + 294/420 = 144 + 294/420 = 438/420
  5. 438/420 simplified gives 73/70
  6. So, 12/35 + 42/60 = 73/70
    In mixed form: 13/70

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