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Add 84/15 and 21/30

1st number: 5 9/15, 2nd number: 21/30

84/15 + 21/30 is 63/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 30 is 30

    Next, find the equivalent fraction of both fractional numbers with denominator 30
  2. For the 1st fraction, since 15 × 2 = 30,
    84/15 = 84 × 2/15 × 2 = 168/30
  3. Likewise, for the 2nd fraction, since 30 × 1 = 30,
    21/30 = 21 × 1/30 × 1 = 21/30
  4. Add the two like fractions:
    168/30 + 21/30 = 168 + 21/30 = 189/30
  5. 189/30 simplified gives 63/10
  6. So, 84/15 + 21/30 = 63/10
    In mixed form: 63/10

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