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Add 28/49 and 7/20

28/49 + 7/20 is 129/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 20 is 980

    Next, find the equivalent fraction of both fractional numbers with denominator 980
  2. For the 1st fraction, since 49 × 20 = 980,
    28/49 = 28 × 20/49 × 20 = 560/980
  3. Likewise, for the 2nd fraction, since 20 × 49 = 980,
    7/20 = 7 × 49/20 × 49 = 343/980
  4. Add the two like fractions:
    560/980 + 343/980 = 560 + 343/980 = 903/980
  5. 903/980 simplified gives 129/140
  6. So, 28/49 + 7/20 = 129/140

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