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Add 21/72 and 21/32

21/72 + 21/32 is 91/96.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 32 is 288

    Next, find the equivalent fraction of both fractional numbers with denominator 288
  2. For the 1st fraction, since 72 × 4 = 288,
    21/72 = 21 × 4/72 × 4 = 84/288
  3. Likewise, for the 2nd fraction, since 32 × 9 = 288,
    21/32 = 21 × 9/32 × 9 = 189/288
  4. Add the two like fractions:
    84/288 + 189/288 = 84 + 189/288 = 273/288
  5. 273/288 simplified gives 91/96
  6. So, 21/72 + 21/32 = 91/96

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