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Add 21/8 and 9/27

1st number: 2 5/8, 2nd number: 9/27

21/8 + 9/27 is 71/24.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 27 is 216

    Next, find the equivalent fraction of both fractional numbers with denominator 216
  2. For the 1st fraction, since 8 × 27 = 216,
    21/8 = 21 × 27/8 × 27 = 567/216
  3. Likewise, for the 2nd fraction, since 27 × 8 = 216,
    9/27 = 9 × 8/27 × 8 = 72/216
  4. Add the two like fractions:
    567/216 + 72/216 = 567 + 72/216 = 639/216
  5. 639/216 simplified gives 71/24
  6. So, 21/8 + 9/27 = 71/24
    In mixed form: 223/24

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