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Add 20/10 and 27/18

1st number: 2 0/10, 2nd number: 1 9/18

20/10 + 27/18 is 7/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 18 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 10 × 9 = 90,
    20/10 = 20 × 9/10 × 9 = 180/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    27/18 = 27 × 5/18 × 5 = 135/90
  4. Add the two like fractions:
    180/90 + 135/90 = 180 + 135/90 = 315/90
  5. 315/90 simplified gives 7/2
  6. So, 20/10 + 27/18 = 7/2
    In mixed form: 31/2

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