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Add 21/54 and 5/40

21/54 + 5/40 is 37/72.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 1080
  2. For the 1st fraction, since 54 × 20 = 1080,
    21/54 = 21 × 20/54 × 20 = 420/1080
  3. Likewise, for the 2nd fraction, since 40 × 27 = 1080,
    5/40 = 5 × 27/40 × 27 = 135/1080
  4. Add the two like fractions:
    420/1080 + 135/1080 = 420 + 135/1080 = 555/1080
  5. 555/1080 simplified gives 37/72
  6. So, 21/54 + 5/40 = 37/72

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