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Add 84/15 and 3/20

1st number: 5 9/15, 2nd number: 3/20

84/15 + 3/20 is 23/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 20 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 15 × 4 = 60,
    84/15 = 84 × 4/15 × 4 = 336/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    3/20 = 3 × 3/20 × 3 = 9/60
  4. Add the two like fractions:
    336/60 + 9/60 = 336 + 9/60 = 345/60
  5. 345/60 simplified gives 23/4
  6. So, 84/15 + 3/20 = 23/4
    In mixed form: 53/4

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