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Add 27/28 and 21/10

1st number: 27/28, 2nd number: 2 1/10

27/28 + 21/10 is 429/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 10 is 140
  2. For the 1st fraction, since 28 × 5 = 140,
    27/28 = 27 × 5/28 × 5 = 135/140
  3. Likewise, for the 2nd fraction, since 10 × 14 = 140,
    21/10 = 21 × 14/10 × 14 = 294/140
  4. Add the two fractions:
    135/140 + 294/140 = 135 + 294/140 = 429/140
  5. In mixed form: 39/140

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