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Add 20/72 and 15/54

20/72 + 15/54 is 5/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 54 is 216
  2. For the 1st fraction, since 72 × 3 = 216,
    20/72 = 20 × 3/72 × 3 = 60/216
  3. Likewise, for the 2nd fraction, since 54 × 4 = 216,
    15/54 = 15 × 4/54 × 4 = 60/216
  4. Add the two fractions:
    60/216 + 60/216 = 60 + 60/216 = 120/216
  5. 120/216 simplified gives 5/9
  6. So, 20/72 + 15/54 = 5/9

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