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Add 20/5 and 9/12

1st number: 4 0/5, 2nd number: 9/12

20/5 + 9/12 is 19/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 12 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 5 × 12 = 60,
    20/5 = 20 × 12/5 × 12 = 240/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    9/12 = 9 × 5/12 × 5 = 45/60
  4. Add the two like fractions:
    240/60 + 45/60 = 240 + 45/60 = 285/60
  5. 285/60 simplified gives 19/4
  6. So, 20/5 + 9/12 = 19/4
    In mixed form: 43/4

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