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Add 45/18 and 20/5

1st number: 2 9/18, 2nd number: 4 0/5

45/18 + 20/5 is 13/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 5 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 18 × 5 = 90,
    45/18 = 45 × 5/18 × 5 = 225/90
  3. Likewise, for the 2nd fraction, since 5 × 18 = 90,
    20/5 = 20 × 18/5 × 18 = 360/90
  4. Add the two like fractions:
    225/90 + 360/90 = 225 + 360/90 = 585/90
  5. 585/90 simplified gives 13/2
  6. So, 45/18 + 20/5 = 13/2
    In mixed form: 61/2

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