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Add 5/90 and 20/12

1st number: 5/90, 2nd number: 1 8/12

5/90 + 20/12 is 31/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 12 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 90 × 2 = 180,
    5/90 = 5 × 2/90 × 2 = 10/180
  3. Likewise, for the 2nd fraction, since 12 × 15 = 180,
    20/12 = 20 × 15/12 × 15 = 300/180
  4. Add the two like fractions:
    10/180 + 300/180 = 10 + 300/180 = 310/180
  5. 310/180 simplified gives 31/18
  6. So, 5/90 + 20/12 = 31/18
    In mixed form: 113/18

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