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Add 21/54 and 3/72

21/54 + 3/72 is 31/72.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 72 is 216

    Next, find the equivalent fraction of both fractional numbers with denominator 216
  2. For the 1st fraction, since 54 × 4 = 216,
    21/54 = 21 × 4/54 × 4 = 84/216
  3. Likewise, for the 2nd fraction, since 72 × 3 = 216,
    3/72 = 3 × 3/72 × 3 = 9/216
  4. Add the two like fractions:
    84/216 + 9/216 = 84 + 9/216 = 93/216
  5. 93/216 simplified gives 31/72
  6. So, 21/54 + 3/72 = 31/72

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