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Add 30/20 and 27/28

1st number: 1 10/20, 2nd number: 27/28

30/20 + 27/28 is 69/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 28 is 140
  2. For the 1st fraction, since 20 × 7 = 140,
    30/20 = 30 × 7/20 × 7 = 210/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    27/28 = 27 × 5/28 × 5 = 135/140
  4. Add the two fractions:
    210/140 + 135/140 = 210 + 135/140 = 345/140
  5. After reducing the fraction, the answer is 69/28
  6. In mixed form: 213/28

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