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Add 80/20 and 90/25

1st number: 4 0/20, 2nd number: 3 15/25

80/20 + 90/25 is 38/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 25 is 100

    Next, find the equivalent fraction of both fractional numbers with denominator 100
  2. For the 1st fraction, since 20 × 5 = 100,
    80/20 = 80 × 5/20 × 5 = 400/100
  3. Likewise, for the 2nd fraction, since 25 × 4 = 100,
    90/25 = 90 × 4/25 × 4 = 360/100
  4. Add the two like fractions:
    400/100 + 360/100 = 400 + 360/100 = 760/100
  5. 760/100 simplified gives 38/5
  6. So, 80/20 + 90/25 = 38/5
    In mixed form: 73/5

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