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Add 18/90 and 20/5

1st number: 18/90, 2nd number: 4 0/5

18/90 + 20/5 is 21/5.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 90 × 1 = 90,
    18/90 = 18 × 1/90 × 1 = 18/90
  3. Likewise, for the 2nd fraction, since 5 × 18 = 90,
    20/5 = 20 × 18/5 × 18 = 360/90
  4. Add the two like fractions:
    18/90 + 360/90 = 18 + 360/90 = 378/90
  5. 378/90 simplified gives 21/5
  6. So, 18/90 + 20/5 = 21/5
    In mixed form: 41/5

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