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Add 8/21 and 20/25

8/21 + 20/25 is 124/105.

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,
    8/21 = 8 × 25/21 × 25 = 200/525
  3. Likewise, for the 2nd fraction, since 25 × 21 = 525,
    20/25 = 20 × 21/25 × 21 = 420/525
  4. Add the two like fractions:
    200/525 + 420/525 = 200 + 420/525 = 620/525
  5. 620/525 simplified gives 124/105
  6. So, 8/21 + 20/25 = 124/105
    In mixed form: 119/105

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