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Add 20/27 and 42/28

1st number: 20/27, 2nd number: 1 14/28

20/27 + 42/28 is 121/54.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 28 is 756

    Next, find the equivalent fraction of both fractional numbers with denominator 756
  2. For the 1st fraction, since 27 × 28 = 756,
    20/27 = 20 × 28/27 × 28 = 560/756
  3. Likewise, for the 2nd fraction, since 28 × 27 = 756,
    42/28 = 42 × 27/28 × 27 = 1134/756
  4. Add the two like fractions:
    560/756 + 1134/756 = 560 + 1134/756 = 1694/756
  5. 1694/756 simplified gives 121/54
  6. So, 20/27 + 42/28 = 121/54
    In mixed form: 213/54

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