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Add 20/54 and 9/45

20/54 + 9/45 is 77/135.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 45 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 54 × 5 = 270,
    20/54 = 20 × 5/54 × 5 = 100/270
  3. Likewise, for the 2nd fraction, since 45 × 6 = 270,
    9/45 = 9 × 6/45 × 6 = 54/270
  4. Add the two like fractions:
    100/270 + 54/270 = 100 + 54/270 = 154/270
  5. 154/270 simplified gives 77/135
  6. So, 20/54 + 9/45 = 77/135

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