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Add 40/20 and 9/8

1st number: 2 0/20, 2nd number: 1 1/8

40/20 + 9/8 is 25/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 8 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 20 × 2 = 40,
    40/20 = 40 × 2/20 × 2 = 80/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    9/8 = 9 × 5/8 × 5 = 45/40
  4. Add the two like fractions:
    80/40 + 45/40 = 80 + 45/40 = 125/40
  5. 125/40 simplified gives 25/8
  6. So, 40/20 + 9/8 = 25/8
    In mixed form: 31/8

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