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Add 18/25 and 21/36

18/25 + 21/36 is 391/300.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 36 is 900

    Next, find the equivalent fraction of both fractional numbers with denominator 900
  2. For the 1st fraction, since 25 × 36 = 900,
    18/25 = 18 × 36/25 × 36 = 648/900
  3. Likewise, for the 2nd fraction, since 36 × 25 = 900,
    21/36 = 21 × 25/36 × 25 = 525/900
  4. Add the two like fractions:
    648/900 + 525/900 = 648 + 525/900 = 1173/900
  5. 1173/900 simplified gives 391/300
  6. So, 18/25 + 21/36 = 391/300
    In mixed form: 191/300

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