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Add 9/10 and 5/20

9/10 + 5/20 is 23/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 20 is 20
  2. For the 1st fraction, since 10 × 2 = 20,
    9/10 = 9 × 2/10 × 2 = 18/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    5/20 = 5 × 1/20 × 1 = 5/20
  4. Add the two fractions:
    18/20 + 5/20 = 18 + 5/20 = 23/20
  5. In mixed form: 13/20

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