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Add 25/45 and 21/49

25/45 + 21/49 is 62/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 49 is 2205

    Next, find the equivalent fraction of both fractional numbers with denominator 2205
  2. For the 1st fraction, since 45 × 49 = 2205,
    25/45 = 25 × 49/45 × 49 = 1225/2205
  3. Likewise, for the 2nd fraction, since 49 × 45 = 2205,
    21/49 = 21 × 45/49 × 45 = 945/2205
  4. Add the two like fractions:
    1225/2205 + 945/2205 = 1225 + 945/2205 = 2170/2205
  5. 2170/2205 simplified gives 62/63
  6. So, 25/45 + 21/49 = 62/63

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