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Add 15/42 and 20/28

15/42 + 20/28 is 15/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 28 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 42 × 2 = 84,
    15/42 = 15 × 2/42 × 2 = 30/84
  3. Likewise, for the 2nd fraction, since 28 × 3 = 84,
    20/28 = 20 × 3/28 × 3 = 60/84
  4. Add the two like fractions:
    30/84 + 60/84 = 30 + 60/84 = 90/84
  5. 90/84 simplified gives 15/14
  6. So, 15/42 + 20/28 = 15/14
    In mixed form: 11/14

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