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Add 21/8 and 15/80

1st number: 2 5/8, 2nd number: 15/80

21/8 + 15/80 is 45/16.

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,
    15/80 = 15 × 1/80 × 1 = 15/80
  4. Add the two like fractions:
    210/80 + 15/80 = 210 + 15/80 = 225/80
  5. 225/80 simplified gives 45/16
  6. So, 21/8 + 15/80 = 45/16
    In mixed form: 213/16

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