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Add 8/5 and 72/80

1st number: 1 3/5, 2nd number: 72/80

8/5 + 72/80 is 5/2.

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,
    8/5 = 8 × 16/5 × 16 = 128/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    72/80 = 72 × 1/80 × 1 = 72/80
  4. Add the two like fractions:
    128/80 + 72/80 = 128 + 72/80 = 200/80
  5. 200/80 simplified gives 5/2
  6. So, 8/5 + 72/80 = 5/2
    In mixed form: 21/2

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