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Add 12/60 and 21/45

12/60 + 21/45 is 2/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 45 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 60 × 3 = 180,
    12/60 = 12 × 3/60 × 3 = 36/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    21/45 = 21 × 4/45 × 4 = 84/180
  4. Add the two like fractions:
    36/180 + 84/180 = 36 + 84/180 = 120/180
  5. 120/180 simplified gives 2/3
  6. So, 12/60 + 21/45 = 2/3

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