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Add 18/20 and 7/28

18/20 + 7/28 is 23/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 28 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    18/20 = 18 × 7/20 × 7 = 126/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    7/28 = 7 × 5/28 × 5 = 35/140
  4. Add the two like fractions:
    126/140 + 35/140 = 126 + 35/140 = 161/140
  5. 161/140 simplified gives 23/20
  6. So, 18/20 + 7/28 = 23/20
    In mixed form: 13/20

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