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Add 18/72 and 20/48

18/72 + 20/48 is 2/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 48 is 144
  2. For the 1st fraction, since 72 × 2 = 144,
    18/72 = 18 × 2/72 × 2 = 36/144
  3. Likewise, for the 2nd fraction, since 48 × 3 = 144,
    20/48 = 20 × 3/48 × 3 = 60/144
  4. Add the two fractions:
    36/144 + 60/144 = 36 + 60/144 = 96/144
  5. 96/144 simplified gives 2/3
  6. So, 18/72 + 20/48 = 2/3

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