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Add 9/8 and 42/80

1st number: 1 1/8, 2nd number: 42/80

9/8 + 42/80 is 33/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 8 × 10 = 80,
    9/8 = 9 × 10/8 × 10 = 90/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    42/80 = 42 × 1/80 × 1 = 42/80
  4. Add the two like fractions:
    90/80 + 42/80 = 90 + 42/80 = 132/80
  5. 132/80 simplified gives 33/20
  6. So, 9/8 + 42/80 = 33/20
    In mixed form: 113/20

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