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Add 15/4 and 9/20

1st number: 3 3/4, 2nd number: 9/20

15/4 + 9/20 is 21/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 20 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 4 × 5 = 20,
    15/4 = 15 × 5/4 × 5 = 75/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    9/20 = 9 × 1/20 × 1 = 9/20
  4. Add the two like fractions:
    75/20 + 9/20 = 75 + 9/20 = 84/20
  5. 84/20 simplified gives 21/5
  6. So, 15/4 + 9/20 = 21/5
    In mixed form: 41/5

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