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Add 3/5 and 9/8

1st number: 3/5, 2nd number: 1 1/8

3/5 + 9/8 is 69/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 8 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 5 × 8 = 40,
    3/5 = 3 × 8/5 × 8 = 24/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    9/8 = 9 × 5/8 × 5 = 45/40
  4. Add the two like fractions:
    24/40 + 45/40 = 24 + 45/40 = 69/40
  5. So, 3/5 + 9/8 = 69/40
    In mixed form: 129/40

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