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Add 27/5 and 21/8

1st number: 5 2/5, 2nd number: 2 5/8

27/5 + 21/8 is 321/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 8 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 5 × 8 = 40,
    27/5 = 27 × 8/5 × 8 = 216/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    21/8 = 21 × 5/8 × 5 = 105/40
  4. Add the two like fractions:
    216/40 + 105/40 = 216 + 105/40 = 321/40
  5. So, 27/5 + 21/8 = 321/40
    In mixed form: 81/40

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