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Add 4/10 and 3/90

4/10 + 3/90 is 13/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 90 is 90
  2. For the 1st fraction, since 10 × 9 = 90,
    4/10 = 4 × 9/10 × 9 = 36/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    3/90 = 3 × 1/90 × 1 = 3/90
  4. Add the two fractions:
    36/90 + 3/90 = 36 + 3/90 = 39/90
  5. After reducing the fraction, the answer is 13/30

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