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Add 90/45 and 45/20

1st number: 2 0/45, 2nd number: 2 5/20

90/45 + 45/20 is 17/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 20 is 180
  2. For the 1st fraction, since 45 × 4 = 180,
    90/45 = 90 × 4/45 × 4 = 360/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    45/20 = 45 × 9/20 × 9 = 405/180
  4. Add the two fractions:
    360/180 + 405/180 = 360 + 405/180 = 765/180
  5. After reducing the fraction, the answer is 17/4
  6. In mixed form: 41/4

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