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Add 20/25 and 6/90

20/25 + 6/90 is 13/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 90 is 450
  2. For the 1st fraction, since 25 × 18 = 450,
    20/25 = 20 × 18/25 × 18 = 360/450
  3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
    6/90 = 6 × 5/90 × 5 = 30/450
  4. Add the two fractions:
    360/450 + 30/450 = 360 + 30/450 = 390/450
  5. After reducing the fraction, the answer is 13/15

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