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Add 20/25 and 42/45

20/25 + 42/45 is 26/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 45 is 225
  2. For the 1st fraction, since 25 × 9 = 225,
    20/25 = 20 × 9/25 × 9 = 180/225
  3. Likewise, for the 2nd fraction, since 45 × 5 = 225,
    42/45 = 42 × 5/45 × 5 = 210/225
  4. Add the two fractions:
    180/225 + 210/225 = 180 + 210/225 = 390/225
  5. 390/225 simplified gives 26/15
  6. So, 20/25 + 42/45 = 26/15
    In mixed form: 111/15

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