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Add 3/5 and 90/80

1st number: 3/5, 2nd number: 1 10/80

3/5 + 90/80 is 69/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 5 × 16 = 80,
    3/5 = 3 × 16/5 × 16 = 48/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    90/80 = 90 × 1/80 × 1 = 90/80
  4. Add the two like fractions:
    48/80 + 90/80 = 48 + 90/80 = 138/80
  5. 138/80 simplified gives 69/40
  6. So, 3/5 + 90/80 = 69/40
    In mixed form: 129/40

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