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Add 28/80 and 21/10

1st number: 28/80, 2nd number: 2 1/10

28/80 + 21/10 is 49/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 10 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    28/80 = 28 × 1/80 × 1 = 28/80
  3. Likewise, for the 2nd fraction, since 10 × 8 = 80,
    21/10 = 21 × 8/10 × 8 = 168/80
  4. Add the two like fractions:
    28/80 + 168/80 = 28 + 168/80 = 196/80
  5. 196/80 simplified gives 49/20
  6. So, 28/80 + 21/10 = 49/20
    In mixed form: 29/20

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