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Add 80/25 and 7/21

1st number: 3 5/25, 2nd number: 7/21

80/25 + 7/21 is 53/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 21 is 525

    Next, find the equivalent fraction of both fractional numbers with denominator 525
  2. For the 1st fraction, since 25 × 21 = 525,
    80/25 = 80 × 21/25 × 21 = 1680/525
  3. Likewise, for the 2nd fraction, since 21 × 25 = 525,
    7/21 = 7 × 25/21 × 25 = 175/525
  4. Add the two like fractions:
    1680/525 + 175/525 = 1680 + 175/525 = 1855/525
  5. 1855/525 simplified gives 53/15
  6. So, 80/25 + 7/21 = 53/15
    In mixed form: 38/15

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