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Add 9/10 and 9/8

1st number: 9/10, 2nd number: 1 1/8

9/10 + 9/8 is 81/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 8 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 10 × 4 = 40,
    9/10 = 9 × 4/10 × 4 = 36/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    9/8 = 9 × 5/8 × 5 = 45/40
  4. Add the two like fractions:
    36/40 + 45/40 = 36 + 45/40 = 81/40
  5. So, 9/10 + 9/8 = 81/40
    In mixed form: 21/40

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