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Add 18/12 and 20/45

1st number: 1 6/12, 2nd number: 20/45

18/12 + 20/45 is 35/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 45 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 12 × 15 = 180,
    18/12 = 18 × 15/12 × 15 = 270/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    20/45 = 20 × 4/45 × 4 = 80/180
  4. Add the two like fractions:
    270/180 + 80/180 = 270 + 80/180 = 350/180
  5. 350/180 simplified gives 35/18
  6. So, 18/12 + 20/45 = 35/18
    In mixed form: 117/18

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