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Add 27/20 and 9/10

1st number: 1 7/20, 2nd number: 9/10

27/20 + 9/10 is 9/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 10 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 20 × 1 = 20,
    27/20 = 27 × 1/20 × 1 = 27/20
  3. Likewise, for the 2nd fraction, since 10 × 2 = 20,
    9/10 = 9 × 2/10 × 2 = 18/20
  4. Add the two like fractions:
    27/20 + 18/20 = 27 + 18/20 = 45/20
  5. 45/20 simplified gives 9/4
  6. So, 27/20 + 9/10 = 9/4
    In mixed form: 21/4

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