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Add 9/8 and 45/40

1st number: 1 1/8, 2nd number: 1 5/40

9/8 + 45/40 is 9/4.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 8 × 5 = 40,
    9/8 = 9 × 5/8 × 5 = 45/40
  3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
    45/40 = 45 × 1/40 × 1 = 45/40
  4. Add the two like fractions:
    45/40 + 45/40 = 45 + 45/40 = 90/40
  5. 90/40 simplified gives 9/4
  6. So, 9/8 + 45/40 = 9/4
    In mixed form: 21/4

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