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Add 9/21 and 18/25

9/21 + 18/25 is 201/175.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 25 is 525

    Next, find the equivalent fraction of both fractional numbers with denominator 525
  2. For the 1st fraction, since 21 × 25 = 525,
    9/21 = 9 × 25/21 × 25 = 225/525
  3. Likewise, for the 2nd fraction, since 25 × 21 = 525,
    18/25 = 18 × 21/25 × 21 = 378/525
  4. Add the two like fractions:
    225/525 + 378/525 = 225 + 378/525 = 603/525
  5. 603/525 simplified gives 201/175
  6. So, 9/21 + 18/25 = 201/175
    In mixed form: 126/175

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