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Add 21/4 and 28/30

1st number: 5 1/4, 2nd number: 28/30

21/4 + 28/30 is 371/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 30 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 4 × 15 = 60,
    21/4 = 21 × 15/4 × 15 = 315/60
  3. Likewise, for the 2nd fraction, since 30 × 2 = 60,
    28/30 = 28 × 2/30 × 2 = 56/60
  4. Add the two like fractions:
    315/60 + 56/60 = 315 + 56/60 = 371/60
  5. So, 21/4 + 28/30 = 371/60
    In mixed form: 611/60

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