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Add 25/50 and 21/90

25/50 + 21/90 is 11/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 90 is 450

    Next, find the equivalent fraction of both fractional numbers with denominator 450
  2. For the 1st fraction, since 50 × 9 = 450,
    25/50 = 25 × 9/50 × 9 = 225/450
  3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
    21/90 = 21 × 5/90 × 5 = 105/450
  4. Add the two like fractions:
    225/450 + 105/450 = 225 + 105/450 = 330/450
  5. 330/450 simplified gives 11/15
  6. So, 25/50 + 21/90 = 11/15

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