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Add 20/40 and 15/54

20/40 + 15/54 is 7/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 54 is 1080

    Next, find the equivalent fraction of both fractional numbers with denominator 1080
  2. For the 1st fraction, since 40 × 27 = 1080,
    20/40 = 20 × 27/40 × 27 = 540/1080
  3. Likewise, for the 2nd fraction, since 54 × 20 = 1080,
    15/54 = 15 × 20/54 × 20 = 300/1080
  4. Add the two like fractions:
    540/1080 + 300/1080 = 540 + 300/1080 = 840/1080
  5. 840/1080 simplified gives 7/9
  6. So, 20/40 + 15/54 = 7/9

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