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Add 8/80 and 45/21

1st number: 8/80, 2nd number: 2 3/21

8/80 + 45/21 is 157/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 21 is 1680

    Next, find the equivalent fraction of both fractional numbers with denominator 1680
  2. For the 1st fraction, since 80 × 21 = 1680,
    8/80 = 8 × 21/80 × 21 = 168/1680
  3. Likewise, for the 2nd fraction, since 21 × 80 = 1680,
    45/21 = 45 × 80/21 × 80 = 3600/1680
  4. Add the two like fractions:
    168/1680 + 3600/1680 = 168 + 3600/1680 = 3768/1680
  5. 3768/1680 simplified gives 157/70
  6. So, 8/80 + 45/21 = 157/70
    In mixed form: 217/70

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