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Add 20/18 and 12/20

1st number: 1 2/18, 2nd number: 12/20

20/18 + 12/20 is 77/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 18 × 10 = 180,
    20/18 = 20 × 10/18 × 10 = 200/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    12/20 = 12 × 9/20 × 9 = 108/180
  4. Add the two like fractions:
    200/180 + 108/180 = 200 + 108/180 = 308/180
  5. 308/180 simplified gives 77/45
  6. So, 20/18 + 12/20 = 77/45
    In mixed form: 132/45

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