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Add 5/8 and 45/90

5/8 + 45/90 is 9/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 90 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 8 × 45 = 360,
    5/8 = 5 × 45/8 × 45 = 225/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    45/90 = 45 × 4/90 × 4 = 180/360
  4. Add the two like fractions:
    225/360 + 180/360 = 225 + 180/360 = 405/360
  5. 405/360 simplified gives 9/8
  6. So, 5/8 + 45/90 = 9/8
    In mixed form: 11/8

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