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Add 25/75 and 18/63

25/75 + 18/63 is 13/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 63 is 1575

    Next, find the equivalent fraction of both fractional numbers with denominator 1575
  2. For the 1st fraction, since 75 × 21 = 1575,
    25/75 = 25 × 21/75 × 21 = 525/1575
  3. Likewise, for the 2nd fraction, since 63 × 25 = 1575,
    18/63 = 18 × 25/63 × 25 = 450/1575
  4. Add the two like fractions:
    525/1575 + 450/1575 = 525 + 450/1575 = 975/1575
  5. 975/1575 simplified gives 13/21
  6. So, 25/75 + 18/63 = 13/21

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