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Add 90/36 and 80/20

1st number: 2 18/36, 2nd number: 4 0/20

90/36 + 80/20 is 13/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 36 × 5 = 180,
    90/36 = 90 × 5/36 × 5 = 450/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    80/20 = 80 × 9/20 × 9 = 720/180
  4. Add the two like fractions:
    450/180 + 720/180 = 450 + 720/180 = 1170/180
  5. 1170/180 simplified gives 13/2
  6. So, 90/36 + 80/20 = 13/2
    In mixed form: 61/2

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