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Add 21/8 and 28/80

1st number: 2 5/8, 2nd number: 28/80

21/8 + 28/80 is 119/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 8 × 10 = 80,
    21/8 = 21 × 10/8 × 10 = 210/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    28/80 = 28 × 1/80 × 1 = 28/80
  4. Add the two like fractions:
    210/80 + 28/80 = 210 + 28/80 = 238/80
  5. 238/80 simplified gives 119/40
  6. So, 21/8 + 28/80 = 119/40
    In mixed form: 239/40

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