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Add 3/4 and 20/90

3/4 + 20/90 is 35/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 90 is 180
  2. For the 1st fraction, since 4 × 45 = 180,
    3/4 = 3 × 45/4 × 45 = 135/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    20/90 = 20 × 2/90 × 2 = 40/180
  4. Add the two fractions:
    135/180 + 40/180 = 135 + 40/180 = 175/180
  5. After reducing the fraction, the answer is 35/36

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