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Add 21/30 and 10/9

1st number: 21/30, 2nd number: 1 1/9

21/30 + 10/9 is 163/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 9 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 30 × 3 = 90,
    21/30 = 21 × 3/30 × 3 = 63/90
  3. Likewise, for the 2nd fraction, since 9 × 10 = 90,
    10/9 = 10 × 10/9 × 10 = 100/90
  4. Add the two like fractions:
    63/90 + 100/90 = 63 + 100/90 = 163/90
  5. So, 21/30 + 10/9 = 163/90
    In mixed form: 173/90

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